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  1. Presented a thesis on "C.S.F. Prostaglandins in Otological Infections" in the Annual Congress of the Association of Otolaryngologists of India, Cochin, 1978.
  2. Presented a paper in the Annual meeting of The Scottish Otolaryngological Society on the "Otolaryngological manifestations of Rhinosporidiosis" in U.K, November 1985.
  3. Presented a paper in the XIV World Congress of Otorhinolaryngology and Head & Neck Surgery, on "Primary Atrophic Rhinitis" in Madrid, Spain, September 1989.
  4. Presented a paper in The 8th Joint Congress of the Asian - Pacific Federations of The International College Of Surgeons, on "Interesting E.N.T. conditions in the Tropics" Bangkok, Thailand , Nov 1989.
  5. Presented a paper in the 2nd Asir Symposium on Trauma, on "Lightening induced injuries to the Ear" organized by College of Medicine, Abha Branch, King Saud University, Abha, Saudi Arabia, November, 1989.
  6. Presented a paper in the VII Asia Oceania Congress of Otorhinolaryngological Societies, on "Khat and Oral Cancer", Hongkong, December, 1991.
  7. Presented paper on 'Bronchoscopy in Lipoid Pneumonia' at the Assir Surgical Conference held at Assir Central Hospital, organized by College of Medicine, Abha Branch, King Saud University, Abha, Kingdom of Saudi Arabia, May 1992.
  8. Presented a paper in the XX International Congress of Pediatrics of the International Pediatric Association, on "Bronchoscopy in Lipoid Pneumonia", Rio de Janeiro, Brazil, September, 1992.
  9. Presented two papers at the XV World Congress Of Otorhinolaryngology and Head & Neck Surgery, on "Lipoid Pneumonia" & "Prospective study of Intubated patients in I.C.U - The Asian Experience", Istanbul, Turkey, June 1993.
  10. Presented two papers in the 1st G.C.C. conference on Otolaryngology and Head & Neck Surgery , on "How Safe is the Safe Ear?" & "Rhinocerebral Aspergillosis - A Tropical Disease?", Muscat, Sultanate of Oman, January, 1994.
  11. Participated in 'The Second ORL Seminar on the Management of Cholesteatoma' at King King Abdul Aziz university Hospital, Riyadh, Kingdom of Saudi Arabia, May 1994
  12. Participated in the Scientific Programme of 40th Annual Conference of International Conference of Surgeons – Indian Section, Pune, Sept 1994.
  13. Participated in the Inaugural Conference of Association of Paediatric Otolaryngologists of India at Sri Devaraj Urs Medical College, Kolar, Oct 1994.
  14. Presented a paper in the British Skull Base Society, on "Skull Base Surgery in Rhinocerebral Aspergillosis" Nottingham, United Kingdom, May 1995.
  15. Presented a paper at Second National & First International Symposium on Trauma, Anesthesia and Critical Care, on "Post Intubation Laryngeal Changes", Madras, August, 1995.
  16. Presented two papers at the XIV Southern Zonal Conference of A. O. I, on "Trans - Labyrinthine Vestibular Neurectomy" & "Obstructive Sleep Apnoea Syndrome", Nellore, September, 1995.
  17. Presented a paper on "Post Intubation Laryngeal Sequelae", at the 41st Annual Conference of I.C.S. Indian Section, New Delhi, Oct 1995.
  18. Chairperson at the Planery Session at the 48th Annual Conference of the Association of Otolaryngologists of India held at S.C.B. Medical College, Cuttack, Orissa, January 1996.
  19. Participated in the Third National Conference of The Association of Paediatric Otolaryngologists of India, held at Bombay Hospital, Mumbai, Sept 1996.
  20. Presented a paper at the 4th North Zone & XVI U.P Chapter Annual Conference of A.O.I on "Obstructive Sleep Apnoea Syndrome" in Kanpur, November, 1996.
  21. . Participated in the Second Annual Meeting of American College of Surgeons, India Chapter at Chennai, January 1997.
  22. Organising President, South Zone Annual Conference of the Association of Otolaryngologists of India, at Chennai, March 1997.
  23. Guest Oration on "Ear and the Flyer" at the International Civil Aerospace Medical Symposium, Chennai , April, 1997.
  24. Presented a paper at A. O. I. State Annual Conference, on " Obstructive Sleep Apnoea Syndrome", Thiruvalla, Kerala, May, 1997.
  25. Guest Oration on "Common ENT Problems - What a Pediatrician should know" at the South Zone Conference of Indian Academy of Pediatricians, Trichirapalli, August, 1997.
  26. Presented a paper at a Round Table on ENT Diseases, at International College of Surgeons, Indian Section, on "Sensori - Neural Deafness - Medical Management & Surgical Management including Cochlear Implant", Mt. Abu, Rajasthan, September, 1997.
  27. Guest Oration at XIX Karnataka State Conference of A. O. I, on "Cochlear Implants in India -Ground realities & future directions", and Panelist, Round Table on "Functional Endoscopic Sinus Surgery", at Karnataka State Chapter 19th State Conference, held at Jawaharlal Nehru Medical College, Belgaum, October, 1997.
  28. Presented five papers: 1) Translabyrinthine Vestibular Nerve Section, 2) Surgery of Congenital Meatal Atresia 3) Management Strategies of Pharyngeal Pouch 4) Surgery of Gradenigo's Syndrome 5) Surgery of Rare Maxillary Tumors at the Inaugural Conference of AOI, TN chapter, Yercaud, in Oct, 1997.
  29. Guest Oration on "Cochlear Implant - State of the Art" at the XXI Annual Conference Gujarat State Branch of AOI, Surat, in Dec, 1997.
  30. Presented 2 papers: 1) "The Safety of Safe Ears"- Surgical Audit of CSOM Post Intubation Laryngeal Changes - A Prospective Study, Video presentations of "Translabyrinthine Vestibular Nerve Section" & 2)"Surgery of Pharyngeal Pouch" and Moderated Panel Discussion on "Granuloma of Nose and Paranasal Sinuses" at the Golden Jubilee AOI Conference, New Delhi, January, 1998.
  31. Guest Oration on "Rhinocerebral Aspergillosis", Moderator, Round Table on "Carcinoma of Nose & Paranasal Sinuses" and Panelist, Round Table on "Thyroid Carcinoma" at the First SAARC ENT Congress, Dhaka, Bangladesh, February, 1998.
  32. Presented a paper on "Relevance of Cochlear Implant in educating children with hearing impairment" at the VIth National Convention of Educators of the Deaf, Kotagiri, Tamilnadu, April, 1998.
  33. Presented a paper on "Cochlear Implant - State of the Art" at the Neurotology Update '98, Chennai, April, 1998.
  34. Presented a paper on "Endoscopic Surgery of Upper Airway" at the First National Conference of Indian Association of Pediatric Endoscopy and Endosurgery, Chennai, July, 1998.
  35. Presented 3 papers: 1) Translabyrinthine Vestibular Nerve Section -Surgical Audit 2) Surgery of Laryngotracheal Stenosis - Surgical Audit 3) Post Intubation Laryngeal Sequelae and Moderator - "Cross fire on Controversies in Otolaryngology", at the South Zone E N T Conference - '98, Bangalore, July, 1998.
  36. Presented a paper on "Hearing Impairment & Educational implications "at Integrated Education for Disabled - Training Programme For Teachers Educators ( Master Trainers ) conducted by District Primary Education Programme - Tamilnadu, Chennai, Aug 1998.
  37. Presented a paper on "Common Problems in E N T - Their Management" at Reserve Bank Staff College, Chennai, August, 1998.
  38. Presented a paper on "Problems in ENT" at a Pilot Programme on Health Management for Officers of the Bank, Reserve Bank Staff College, Chennai, September, 1998.
  39. Presented 2 papers: "1) Surgery of Vertigo 2) Endoscopic Surgery Of Skull Base" at All India Skull Base Conference, New Delhi, September, 1998.
  40. Presented 2 papers: "1) Posterior Tympanotomy - Revisited 2) Cochlear Implants - Current Status" and Moderator for the Scientific session at the AOI, 2nd Tamilnadu State ENT Conference, ROCKENT, Trichirapalli, September, 1998.
  41. Presented a paper on "Recent Advances in ENT" at the I M A & Association of Otolaryngologists of India, Trichirapalli Branch, Trichirapalli, September, 1998.
  42. Presented 3 papers: "1) Endoscopic Surgery of the Upper Airway 2)Endoscopic Repair of CSF Rhinnorrhea 3) Management of Subglottic Stenosis in Children - The Madras Experience". Moderator: Septal Surgery in Children, Panelist: 1) Adeno Tonsillectomy in Children 2) Cholesteatoma in Children at the Vth Association of Pediatric Otolaryngologists of India & State A. O. I Annual Conference, Kovalam, Kerala, September, 1998.
  43. Delivered Kaza Krishnamurthy Oration on "Cochlear Implants - State of the Art", Panelist: "Problems of FESS - How I Manage" & "Symposium of Vertigo", Speaker on "Medical and Surgical Management of Vertigo" at the 17th Annual A.P. state Conference of the Association of Otolaryngologists of India, Hyderabad, Oct, 1998.
  44. Co - Chairman for guest lectures at the first meeting of The Sinus Endoscopic Society of India, Chennai, December, 1998.
  45. Presented a paper on Endoscopic Spurectomy versus Septoplasty, Speaker on "Stapedectomy" at the Sunrise Updates at the 51st Annual Conference of The A O I, Guwahati, January, 1999.
  46. Presented a paper on "Problems in ENT" at the 2nd Programme on Health Management for Officers of the Bank, Reserve Bank Staff College, Chennai, February, 1999.
  47. Key Note Address on "Laryngotracheal Stenosis" at the 3rd Annual Conference organised by the Indian Society of Laryngology in association with Ali Yavar Jung National Institute for the Hearing Handicapped, Mumbai, March, 1999.
  48. Guest lecture on "Snoring & Sleep Apnoea" at the CME programme conducted by Tamilnadu Hospitals, Chennai, May 1999.
  49. Guest lecture on " Surgeries of Vertigo" at a meeting organised by Johnson & Johnson, Chennai, July 1999 .
  50. Guest speaker in the Video Conference on "Recent advances in the management of Systemic Fungal Infections" organised by Janssen - Cilag Pharmaceuticals Johnson & Johnson, Bombay, July 1999.
  51. Guest lecture on "Cochlear Implantation & The Education Of The Hearing Impaired" at The Refresher Course conducted by Ali Yavar Jung National Institute for the Hearing Impaired in Collaboration with Little Flower Convent Hr. Sec School for the Deaf, for the Teachers of the Hearing Impaired, Tamilnadu at Little Flower Convent Hr. Sec School for the Deaf , Chennai, August, 1999.
  52. Guest lecture on "Advances of Laser in Medicine" at the Two days Seminar on Recent Advances of Lasers in Scientific & Industrial Applications , Organised by Physics Dept, St. Joseph's College (Autonomous), Trichirapalli, September, 1999.
  53. Guest Lecture on "Functional Endoscopic Sinus Surgery" at the Third International Hands on Workshop on Functional Endoscopic Sinus Surgery, Organised by AOI Manipal Branch & Departments of ENT - Head & Neck Surgery and Anatomy at Kasturba Medical College, Manipal, Sept, 1999.
  54. Guest Speaker on "Applications of KTP Laser in ENT" and Moderator in Panel Discussion on "Snoring & Sleep Apnoea Syndrome" at the Tamilnadu State III Annual ENT Conference TEMPORL - 99, Kodaikanal, September 1999.
  55. Guest Speaker on "Update in Laryngology", Speaker on "Evolution & Management of Laryngeal Stenosis", Panelist on "Hoarseness of Voice" & Moderator "Hearing Improvement in Tympanoplasty" at the XXIII Annual Conference of The AOI Gujarat State Branch, Rajkot, October, 1999.
  56. Delivered Annual Guest Oration on 'Surgery of Vertigo' organized by The Maharashtra State Branches of The Association of Otolaryngologists of India at the Maharashtra State ENT Conference at Solapur, October 1999.
  57. Guest Speaker on "Laryngeal Laser Surgery", Panelist on "Management of Vocal Cord" at the 1st All India Workshop on Phonosurgery & Voice Disorders, Organised by The Dept of ENT, Guntur Medical College & AOI, AP Branch, Guntur Chapter, Guntur, Oct 1999.
  58. Delivered Guest Oration on "Medical Applications of Lasers" at IMA,Guntur Branch, Guntur, October, 1999.
  59. Guest Oration on "Surgeries of Vertigo" at the Federation of Maharashtra State Branches of AO I - 31st Maharashtra State ENT Conference, Solapur, October, 1999.
  60. Presented Papers on "Pathology of Reinke's space disorders, Surgical Treatment of Reinke's space disorders, Surgical Treatment of Spasmodic Dysphonia and Surgical Treatment of Hyper nasality" at Dysphonia & Phonosurgery Workshop at Trivandrum, November, 1999.
  61. Guest Orator on "Obstructive Sleep Apnoea & Snoring" at the Millennium Annual AOI - Mumbai Branch Conference, Mumbai, November, 1999.
  62. Guest Speaker on "Early Detection, Intervention & Prevention of Hearing Loss" at the workshop on Childhood Disabilities organised by Kilpauk Medical College in Collaboration with Rotary Club of Madras Temple City & The TN MGR Medical University, Chennai, December 1999.
  63. Guest Orator, Col. Papatla Endowment Oration on "Role of Lasers in ENT Practice" at AOI, Hyderabad Branch, Hyderabad, December 1999.
  64. Guest Speaker on "Invasive Fungal Sinusitis" at the Symposium on Specific Disorders organised by 2nd Annual SESI Conference & Workshop at Sir Ganga Ram Hospital, New Delhi, December, 1999.
  65. Moderator at the Crossfire and presented papers on 1) Pediatric Cochlear Implantation, 2) Managing recurrent Rhinosporidiosis with KTP Laser, 3)Role of KTP 532 laser in Oropharynx and Larynx, 4) Managing distal tracheal stenosis with KTP Laser" at the Annual Conference of AOI, Cochin, January 2000.
  66. Guest Lecture on "Pediatric Cochlear Implantation" at the All India 'Master Trainers' Training Workshop conducted by Little Flower Convent, Chennai, January 2000.
  67. Presented a paper on "Problems in ENT" at the 16th Programme on Health Management for Officers of the Bank, Reserve Bank Staff College, Chennai, January, 2000.
  68. Presented a paper on "Pediatric Cochlear Implantation - Current Status" at the CME Programme organised by Kanchi Kamakoti CHILDS Trust Hospital, Chennai, February, 2000.
  69. Presented a paper on "Recent Advances of Laser in ENT Surgery" at the International Conference on Lasers and their Applications, Organised by the Physics Dept, St. Joseph's College (Autonomous), Trichirapalli, March 2000.
  70. Presented a paper on "Surgical Aspects of Cochlear Implants" at the workshop on Auditory – Verbal Approach and Cochlear Implants in the Education of the hearing impaired, Sponsored by The Clarke School for the Deaf, Chennai & Instituut Voor Doven, The Netherlands, Chennai, March, 2000.
  71. Poster presentation on "A Profile of Disease of Paranasal Sinuses in South India and its Response to Oral Intraconazole" at the 4th International Symposium on Serious Fungal Diseases: Detection, Protection and Eradication Cannes, France, April 2000.
  72. Guest Oration on "1) Management of difficult problems in the Upper Airway 2) Cochlear Implant - Overview 3) Photodynamic Therapy - a new strategy for Head & Neck Malignancies" at Coimbatore & Nilgiris 4th District Annual Meeting, Coonoor, April, 2000.
  73. Guest Oration on "1) Application of KTP Laser in Rhinology 2)Application of KTP in Upper Airway Tract" at the 68th Chinese ENT Society Meeting, Taiwan, Republic China, May, 2000.
  74. Guest Orator, Dr. Grewal Memorial Oration on "Surgery of Vertigo" at the Annual Function & Installation Ceremony of AOI Indore – 2000, at Indore, May 2000.
  75. Guest Speaker on "Lasers in ENT" at the Curtain Raiser for the 14th World Congress of the International Society for Laser Surgery & Medicine at Sri Ramachandra Medical College & Research Institute (Deemed University), Chennai, August 2000.
  76. Presented a paper on "Problems in ENT" at the 3rd Programme on Health Management for Officers of the Bank, Reserve Bank Staff College, Chennai, August 2000.
  77. Guest Speaker on "1) Allergic Functional Sinusitis 2) Surgery of Sphenoid Sinuses (Endoscopy) 3) Management of Bleeding during Surgery & 4) Revision FESS" at the 9th Functional Endoscopic Sinus Surgery Workshop at P.D.Hinduja National Hospital & Seth G.S. Medical College, Mumbai, September, 2000.
  78. Presented papers on "1) KTP Laser in the Management of Rhinosporidiosis 2) Current Concepts in Management of Tracheal Stenosis with KTP 532 Laser & Permanent Stenting 3)Surgery of Glomus Tumors – MERF Experience" at the Fourth TN Annual ENT Conference, ENTER 2000, Erode, September, 2000.
  79. Presented paper on "Current concepts in Management of Tracheal Stenosis with KTP 532 Laser & Permanent Stenting" at the 46th Annual Conference of International College of Surgeons, Indian Section, Chennai, September, 2000.
  80. Delivered Regional AOI Guest Oration on "Endoscopy in Neuro – Otology" at the 19th A.P.State Millennium Conference of the A.O.I in Association with IMA, Karimnagar, October, 2000.
  81. Guest Speaker on "Cochlear Implant in Children", & presented papers on "Application of KTP Laser in Pediatric Airway & Laser In Rhinology" at the VII National Conference of the Pediatric Otolaryngologists Of India & XIII Annual Conference of the North Eastern Branch of the AOI, Imphal, October 2000.
  82. Guest Speaker on " Endoscopic Neuro – Otology" at the IVth International Workshop on Temporal Bone Microsurgical Dissection & 2nd KTP 532 Laser Workshop, Dept. of Head & Neck Surgery & Dept. of Anatomy, KMC, Manipal, November 2000.
  83. Presented a paper on "Problems in ENT" at the 3rd Programme on Health Management for Officers of the Bank, Reserve Bank Staff College, Chennai, January 2001.
  84. Guest speaker on "Endoscopic Pathology of CP Angle Lesion" at the Annual Contact Meet – D.E.P & C.M.E - Tamilnadu & Pondy Chapter, I.A.P.M, Kilpauk Medical College, Chennai, January 2001 /li>
  85. Guest speaker on "Cochlear Implant – Current Trends" at the 53rd Annual Congress of AOI, Chandigarh, January, 2001.
  86. Guest speaker on "Lasers in ENT Surgery" at the National Symposium on Photonics & Spectroscopy, conducted by NSPS, Raman School of Physics, Pondicherry University, Pondicherry, March, 2001.
  87. Guest speaker on "Cochlear Implants – Expectations of the patient / family & Achievements", at the National Symposium on Cochlear Implants conducted by Alps, New Delhi, March 2001.
  88. Participated in the "Allergy Management From West to East" organised by Aventis Pharma Regional Symposium on Allergy, Pattaya, Thailand, March 2001.
  89. Presented a paper on "Problems in ENT" at the Programme on Health Management for Officers of the Bank, Reserve Bank Staff College, Chennai, April 2001.
  90. Moderator, Panel discussion on "Management of Chronic Suppurative Otitis Media" at the IMA & AOI, Thiruchirapalli Branch, Thiruchirapalli, May 2001.
  91. Presented a paper on "Current Trends in ENT" conducted by Information Technology Enablers for Persons with Disability, Anna University, Chennai, June 2001.
  92. Presented papers on, "1. Lasers in tropical Diseases 2. Endoscopic management of Tracheal stenosis with KTP Laser & Tracheal Stenting 3. Laser in Tympanomastoidectomy 4. Endoscopic Laser assisted Dacrocystorhinostomy 5. Lasers in Rhinology 6. Laser Arytenoidectomy 7. KTP laser in Septal diseases 8. Laser Stapedectomy 9. Laser in vascular Lesions of upper airway 10. Laser assisted uvulopalatoplasty - retrospective analysis," at the International Laser Workshop in the World Laser Conference, Sri Ramachandra Medical College & Research Institute (Deemed University), Chennai, August 2001.
  93. Presented a paper on "Problems in ENT" at the 18th Programme on Health Management for Officers of the Bank, Reserve Bank Staff College, Chennai, August 2001.
  94. Guest speaker on "Outcome on Pediatric Cochlear Implant" at the VERTIGO conference conducted by AIIMS, New Delhi, September 2001.
  95. Invited speaker on "Laser in ENT", Chairperson at the Millennium Oration & MERF Oration and presented papers on, "Role of Stroboscopy in Voice Disorders, Pediatric Cochlear Implantation - challenges in India, Role of Laser in Tropical Diseases," at the Vth TN State Annual Conference & VIII APOI Annual Conference, Kanyakumari, September 2001.
  96. Guest speaker on "Endoscopic Laserization & Permanent Stenting of Tracheal Stenosis" and Moderator for panel discussion on "Otosclerosis" & Chairperson for the session on "Vocal Cord Paralysis" at the South Zone Conference of AOI, organized by Department of ENT & Head and neck Surgery at KMC-Manipal & AOI Manipal Branch, Manipal, October 2001.
  97. Delivered Guest Oration on "Application of Lasers in Otolaryngology" at the VII North Zone & U.P. State Branch Conference & Department of Otorhinolaryngology, King George Medical College, Lucknow, in November, 2001.
  98. Guest speaker on "Allergic Fungal Sinusitis" & Speaker at the Plenary Session - Laser in Otolaryngology & Presented a paper on "Endoscopic Laser Surgery in Larynx & Trachea" at AOICON 2002, the 54th Annual Conference of AOI, Bangalore, January 2002.
  99. Guest Speaker on "Medical Management of Genetic Hearing Disorders" at DR. MGR Home & School for the Speech & Hearing Impaired, Chennai, January 2002.
  100. Guest Speaker on "Early Intervention & Cochlear Implant" & Panelist at the Symposium, Conducted by VIII National Convention of Educators of the Deaf, India, A joint event of AYJNIHH, RCI & NCED, India, Chennai, Tamilnadu Chapter, February, 2002.
  101. Guest Speaker on "Cochlear Implant - Surgical Aspects & Outcome" at the 2nd All India Cochlear Implant Workshop, Moulana Azad Medical College, New Delhi, May 2002.
  102. Delivered Dr. Subbiah Oration on "Lasers in Tropical Diseases" Panelist on "Paediatric Allergies & Airway Obstructive Disorders, Headache in Children & Implantation Otology" at the IX APOICON & XXI AOIKCON 2002, organized by Jayanagar General Hospital & Rajiv Gandhi University of Health Sciences, Bangalore, August – Sept 2002.
  103. Guest Speaker, Scientific Symposium on 'Approaches to Anterior Skull Base and Clivus' - at the XVIII World Congress of International Federation of Oto-Rhino-Laryngological Societies (IFOS), Cairo, Egypt, September 2002.
  104. Guest Oration on "Pitfalls in Pediatric Cochlear Implant" organised by All India Neurological Equilibrio Metric Society Of India, Bombay, September, 2002.
  105. Presented a paper on "Problems in ENT" at the Programme on Health Management for Officers of the Bank, Reserve Bank Staff College, Chennai, September 2002.
  106. Guest Oration on "Cochlear Implant" at the Clarke's school for the Deaf, Chennai, September, 2002.
  107. Guest Oration on "Cochlear Implant" and Panelist on "Difficult Situations in Stapedectomy" at the Otology Workshop 2002, Deenanath Mangeshkar Hospital, Pune October, 2002.
  108. Guest Speaker on "Cochlear Implantation" at the Workshop on Neural Stimulation organised by Anna University, Chennai, December 2002.
  109. Guest Oration on "Cochlear Implant – State of the Art & Surgical Rehabilitation of Hearing Challenged" at the 35th ISHACON & All India Speech & Hearing Association Annual Conference, Chennai, January, 2003.
  110. Guest Lecture on "Implants in Otology" at the Dept. of ENT, Govt. General Hospital, Chennai, February, 2003.
  111. Guest Speaker on "Cochlear Implant" organised by Mohan Kumaramangalam Govt. Medical College, Salem, February, 2003.
  112. Guest Speaker on "Cochlear Implant & Endoscopy of Cerebello Pontine Angle Tumors" organised by TRIMACON-2003, South Zone IMA-AMS Conference & Annual Tamilnadu IMA-CGP Conference, Thiruchirapalli, February, 2003.
  113. Speaker on "Implantable Middle Ear Devices" organised by AOI, Thiruchirapalli, February, 2003.
  114. Speaker on "Multichannel Cochlear Implantation – Present & Future" organised by Frontiers of Research on Speech & Music Organised by Indian Institute of Technology, Kanpur, February, 2003.
  115. Guest Speaker on "Current Trends in Management of Vertigo" organised by AOI, Cochin, March, 2003.
  116. Attended Indian Cochlear Implant Group Meeting at Bangalore, March 2003.
  117. Guest Lecture on "Laser in Endoscopic Sinus Surgery" and 'Recent advances in the Surgery of Vertigo" Organised by Maharashtra State Conference and AOI, Aurangabad, April 2003.
  118. Guest Lecture on "Recent Advances in Endoscopic Sinus Surgery" & "Endoscopic Anatomy of Paranasal Sinuses" at JN Medical College, Belgaum, May 2003.
  119. Guest Faculty and delivered Guest Lecture on "Cochlear Implant – State of the Art, & Moderator, Panel Discussion on "FESS" at the Third Live Surgery Workshop & CME at KMC, Mangalore, May 2003.
  120. Guest lecture on "Current Concepts and Management of Vertigo", South Zone and Kerala State Conference of Association of Otolaryngologists of India, SOUTH ZONE AOI-CON-2003, ENT Club of Thrissur, Thrissur, Kerala, September, 2003.
  121. Guest Lecture on "Endoscopic Neurotology" and Panelist on 'Otosclerosis' organised by 5th International Temporal Bone Microsurgical Dissection and 3rd KTP Laser workshop at The Department of ENT & Head & Neck Surgery and Department of Anatomy, KMC, Manipal, Oct 2003.
  122. Chief Guest & Guest Orator on "Cochlear Implant-Current Concepts, Future prospects" and Moderator Panel discussion on "Cochlear Implants", ENT Update 2003, at Command Hospital Air force, Bangalore, October 2003.
  123. Chairman, Panel discussion on "Management of Metastatic Neck Disease" at Head & Neck Oncology Conference, AIIMS, New Delhi, October 2003.
  124. Delivered Guest Oration on "Multi-Channel Cochlear Implantation - Outcomes and difficulties in Indian Patients" and Guest Lecture on "Endoscopic Laserization and Endolumen Stenting in the Management of Tracheal Stenosis" in the Joint International ENT Update 2003 organised jointly by International Academy of Otolaryngology-Head & Neck Surgery and the Indian Association of Laser surgery and Medicine at the Deenanath Mangeshkar Hospital, Pune, November 2003.
  125. Presented papers on "Problems in Cochlear Implantation from an Indian perspective" & "CI in profoundly deaf children with multiple disabilities" at First Cochlear Implant Group of India Conference, Mumbai, November 2003.
  126. Participated in "4th Congress of Asia Pacific Symposium on Cochlear Implant and Related Sciences", hosted by Dept of Otolaryngology, College of Medicine, National Taiwan University, Prof. S.M.Tu's Academic Foundation, Taipei, Taiwan, December 2003.
  127. Presented a paper on "Cochlear Implantation and Artificial Auditory Nerve Processing in the Deaf" at Frontiers of Research on Speech & Music, organised by CASL, Annamalai University, Chidambaram, Tamilnadu, January 2004.
  128. Moderator, Panel discussion on "Cochlear Implants" and presented a Paper on "Pediatric Laryngeal Airway - Conventional vs Laser" at 10th Annual Conference APOICON 2004, Association of Pediatric Otolaryngologists of India, Conducted by Dept of ENT, Speech & Hearing, Head & Neck surgery, Christian Medical College & Hospital, Vellore, February 2004.
  129. Guest Lecture on "Role of Lasers in Laryngeal & Tracheal Surgery " at the Platinum Jubilee Celebrations of Annamalai University at Rajah Muthiah Medical College & Hospital, Annamalai University, Division of ENT RMMCH, PHONOCON - 2004, Chidambaram, February 2004.
  130. Speaker, at a Symposium on "Tonsillitis – Current Views" organised by Stancare ENT C.M.E, Dept of ENT and Head & Neck Surgery, Govt. Stanley Medical College and Hospital, Chennai, March 2004.
  131. Guest Speaker on "Laser in ENT" organised by Harvey Clinic, Rajapalayam, April 2004.
  132. Guest Lecture on "Vertigo" organised by AOI, and 22nd Karnataka State Annual Conference, Mysore, April 2004.
  133. Chief Faculty on "Recent Advances in the Management of Pediatric ENT" organised by The Indian Academy of Pediatrics, Kottai Pedicon"– CME – Pediatrics, Tamilnadu State Chapter, Pattukkottai, June 2004.
  134. Guest Lecture on "Lasers in ENT" organized by Bombay Chapter AOI, Mumbai, June 2004.
  135. Guest Speaker, 'Cochlear Implants- State of the Art', organized by IMA Bangalore Chapter–Annual CME, Bangalore, July 2004.
  136. Guest Speaker, "Applications Of Laser in Rhinology" organised by Sinus Endoscopy Society of India, Pollachi, Coimbatore Dist, July 2004.
  137. Guest Speaker, "Recent Advances in the Evaluation and Management of Vertigo" organised by Solvay Pharma India Ltd, Trivandrum, August 2004.
  138. Chairman, "Symposia Panel on Medical Ethics", organised by Sriram Engineering College on National Conference on Professional Ethics – Precept and Practice, Perumalpattu, August 2004.
  139. Guest Speaker on "Noise induced Hearing Loss" organised by The Hindu, Hearing Conservation Programme, Chennai, August 2004.
  140. Invited Speaker on 'Application of KTP 532 Laser in Tropical Diseases', Endoscopic Management of Tracheal Stenosis with KTP/532 Laser & Permanent Stenting', Tuberculosis Otitis Media -A Resurgence", Chairperson – "Otology" Panel Discussion & Panelist 'Cochlear Implant' at 4th SAARC ENT Congress, Colombo, Srilanka, August – September 2004.
  141. Delivered Dr.Kaja Krishnamurthy Oration on "Surgical Challenges and outcome in Cochlear Implantation" organised by South Zone ENT Conference 2004 and 23rd State Conference of AOI, Visakhapatnam, September 2004.
  142. Delivered Prof. C.M.Haridas Oration on "Advances in Endoscopic Sinus Surgery" organised by ENTCON KUMARAKOM – 2004, Kerala, September 2004.
  143. Guest Speaker on "Cochlear Implantation-State of the Art" and "Application of Lasers in difficult Airway disorders", Panelist on "Vertigo" at NEBAOICON 2004, Sivasagar, Assam, October, 2004.
  144. Guest Speaker on 'Endoscopic Approach to Post Cranial Fossa & C.P.Angle' and 'Use of Lasers in Airways', Panelist "Complications and limitations of FESS", "Application of Lasers in Upper Airway' and Revision Ear Surgery" organised by 36th Maharashtra State ENT Conference (The Federation of Maharashtra State Branches of AOI), Mahabaleshwar, October, 2004.
  145. Panelist "Ethical Issues and Future" organised by The Cochlear Group of India, 2nd National Conference, Chennai, November 2004.
  146. Guest Speaker on "Tropical Diseases in Rhinology" organised by Asian Research Symposium in Rhinology & 10th Biennial Congress of the Trans- Pacific Allergy & Immunology Society, Mumbai, November 2004.
  147. Presented papers on "Surgical Challenges in Cochlear Implant" & "Surgical Management of Glomus Tumors at MERF" at the VIIIth TN State AOI Conference, Madurai, November 2004.
  148. Delivered Dr.N.Balakrishnan Pillai Memorial Oration on "Neuro Endoscopy" and presented a paper on 'Modified Radical Mastoidectomy' at KENTCON 2004 & III Annual State Conference of Otolaryngologists organised by Kerala State AOI, Trivandrum, Nov 2004.
  149. Guest Oration on "Cochlear Implants Past, Present & Future" organised by VENTCON AKOLA 2004, 24th Vidarba ENT Conference at Akola, Maharashtra, December 2004.
  150. Guest Oration on "Surgical Challenges in Cochlear Implantation" organised by Bombay City AOI Branch, Mumbai, December, 2004.
  151. Guest Speaker on 'C.P.Angle Endoscopic Management of CSF Leaks & Skull bone defects', Panelist –'Cochlear Implant', Presented papers on 'Surgical Challenges in Cochlear Implantation', 'Jugulo Tympanic Paragangliomas-MERF Experience', 'Management of Laryngotracheal Stenosis-The MERF experience', 'Post intubation Laryngeal Sequelae in ICU-A prospective study' at the 57th Annual Conference of AOI, Hyderabad, January 2005.
  152. Panelist on 'CSOM-Surgical Aspects' organised by Department of ENT Stanley Medical College, Chennai, January 2005.
  153. Guest speaker on 'What's New in ENT' organised by Department of ENT, Mahatma Gandhi Medical College and Research Institute, Pondicherry, February 2005.
  154. Panelist on 'Role of Fungus in Sinusitis and treatment protocols' at the "Advanced Endoscopic Nasal & Skull Base Surgery –Current Trends" held by Sundaram Medical Foundation Dr. Rangarajan Memorial Hospital, Chennai, February 2005.
  155. Guest Speaker on 'Applications of Lasers in ENT' at the AOI Malabar Branch Peripheral Meet-2005, Kerala's 1st Laser workshop on Otolaryngology Lasercon 2005, Perintalmanna, Kerala, February 2005.
  156. Speaker on 'Sound is Bliss but Noise is Hell' organised by SIET College for Women and Exnora International against Noise Pollution, Chennai, February 2005.
  157. Speaker on 'Developing a Cochlear Implant Programme in India' at the Cochlear Implant 2005 Conference, Spier Estate, Stellenbosch, South Africa, March 2005.
  158. Speaker on 'Cochlear Implant Experience in India' at KKWCH, Singapore, March 2005.
  159. Delivered Prof. Dr. R.Nanjunda Rao Endowment Oration on 'Neural Prosthetics and the Auditory system "A Window to the Future' at The Tamil Nadu Dr. M. G. R. Medical University, Chennai, March 2005.
  160. Guest speaker on 'Laser in Rhinology' at the Ramachandra Laser Update 2005, organised by Sri Ramachandra Medical University, Porur, April 2005.
  161. Guest Speaker on 'Implantable Hearing Aids' & Panelist on 'Ossiculoplasty' at the 1st National Course on Basic & Advanced Micro Ear Surgery organized by Jain ENT Hospital at Jaipur, April 2005.
  162. Guest Lecture on 'Recent Advances in the Diagnosis & Management of senorineural Hearing loss' at the Ear & Endoscopic Sinus Surgery Workshop–2005 organised by Kayankar ENT Hospital, Nandad, April 2005.
  163. Delivered AOI Delhi Guest Oration on 'Auditory Neural Prosthesis-A window to the future' and a Panelist in 'Pitfalls of Mastoid Surgery' at the 28th Annual Conference, Association of Otolaryngologists of India, Delhi State Branch, Delhi, May 2005.
  164. Dr.P.V.Datti Oration on 'Auditory Brainstem Implants-Looking beyond Cochlea' organised by 23rd AOI Karnataka State Conference-2005, AOI Hubli-Dharwad Branch, KIMS, Hubli, May 2005.
  165. Faculty in LIVE WEBCAST on 'Continued Challenges in Combating Nasal Polyps and Otitis Media' organised by ACTIS on Recent Advances In Respiratory Medicine at Mumbai, July, 2005.
  166. Speaker on 'Pre-op Evaluation' at 1st International Cochlear Implant & Advanced Otology, Hands on Audiology and Temporal Bone Cochleostomy Workshop - 2005 organised by The Association of Otolaryngologists of India, A.P State Branch, Hyderabad Branch & SAHI, at Govt. ENT Hospital, Hyderabad, Andhra Pradesh, July 2005.
  167. Video Lecture on 'Endoscopic Skull Base Surgery' at the ICS Update- 2005 Chennai in the National Update organised by International College of Surgeons-Indian Section, Chennai, July 2005.
  168. Guest Oration on 'Cochlear Implantation: The Present & Future' the 1st International Cochlear Implant & Advanced Otology, Hands on Audiology & Temporal Bone Cochleostomy Workshop-2005, organized by The Association of Otolaryngologists of India, Andhra Pradesh, Koti, Hyderabad, July 2005.
  169. Moderator on Panel Discussion on 'Cochlear Implantation-Present &Future' and presented papers on 'Auditory Brainstem Implantation: The first Indian experience', 'Management of Laryngotracheal Stenosis-The MERF experience', 'Surgical challenges in Cochlear Implantation-The MERF experience', 'Clinical profile of Glomus Tumor-The MERF experience' at MEGA evENT-2005, organized by MGMC & RI and The Association of Otolaryngologists of India, South Zone, IX Tamilnadu & Pondicherry States ENT Conference, Pondicherry, September 2005.
  170. Panelist on 'Total Laryngopharyngoesophagectomy with Gastric pull- up' at the International Live Surgical Workshop & CME on Head & Neck Diseases and Skull Base Tumors' organized by Dept of Otolaryngology-Head & Neck Surgery, KMC. Mangalore, September 2005
  171. Guest speaker on 'Bioceramics in ENT Procedures-Scope and Challenges at the session on Biological Ceramics at the National Conference on Ceramics for Medical Applications CMA 2005 organised by Chennai Chapters of Society for Biomaterials and Artificial Organs India, The Indian Ceramic Society and Dept of Metallurgical and Materials Engineering, Indian Institute of Technology, Madras, Chennai, September 2005.
  172. Invited speaker on 'Auditory Brainstem Implant' at the National ENT Update- 2005, Dept of ENT, Armed Forces Medical College, (Supported by UGC, MCI & CMR), Pune, September 2005.
  173. Delivered Dr. M.V. Nampoothiripad Memorial Oration on 'Recent Advances in Surgical Management of Obstructive Sleep Apnoea' Moderator for the panel discussion on 'Microlaryngeal Surgery' and Panelist on 'Tympanoplasty Basics and Problems' at the KENTCON 2005, Annual Conference of the Association of Otolaryngologists of India, Kerala State Branch, Manjeri, Kerala, October 2005.
  174. Guest speaker on 'Brainstem Implant' at the 29th Annual Conference 2005, Association of Otolaryngologists of India, Gujarat State Branch, organized by Bhavnagar ENT Surgeons Association, Bhavnagar, October 2005.
  175. Delivered Late Dr. Pankaj Shah Oration on 'Auditory Brain Stem Implant' and Presented a paper on 'Posterior Fossa Endoscopy, Moderator at Panel discussion on 'Tympanomastoid Surgery' at 29th Annual Conference-2005, AOI, Gujarat State Branch, organized by Bhavnagar ENT Surgeons Association, DIU, October 2005.
  176. Panelist in "Surgical Aspects" and presented a paper on "Auditory Brainstem Implant" at the 3rd National Conference of Cochlear Group of India, New Delhi, November 2005.
  177. Guest speaker on 'Endoscopy of the CP Angle', 'Cochlear Implantation:the Indian Scenario', 'Auditory Neural Prosthesis: A Window to the Future', Panelist on 'FESS' at the 2nd International Conference on Otolaryngology-Head and Neck Surgery, organized by Society of Otolaryngologists and Head and Neck Surgeons of Bangladesh, Dhaka, Bangladesh, November 2005.
  178. Presenting a paper on 'Importance of a Multidisciplinary Approach in Achieving Good outcomes' at the '5th Asia Pacific Symposium on Cochlear Implant and Related Sciences' organized by Department of Surgery, Prince of Wales Hospital, The Chinese University of Hongkong, Hongkong, November 2005.
  179. Delivered Dr. Satyaban Roy Memorial Oration on 'Endoscopy of CP Angle' at the 34th Annual State Conference organized by AOI West Bengal State Branch, Kolkata, December 2005.
  180. Guest Lecture on 'Hearing loss in Children' organized by MEDICON 2005, 80th National Conference of Indian Medical Association, hosted by Tamilnadu State Branch, Chennai, December 2005.
  181. Guest Speaker on 'Auditory Neural Prosthesis', Moderator on Symposium on 'Sleep Apnoea and Snoring', presented papers on 'Endoscopy of the CP Angle' and 'Auditory Neural Prosthesis-Window to the future' at 58th AOICON - 2006, the 58th Annual Conference of AOI, organized by King George Medical College and AOI Lucknow Branch, Lucknow, January 2006.
  182. Guest Lecture on 'Surgery of Sensorineural Hearing Loss-Present Trends and Future prospects' at the 'Advanced Otology Course 2006' on 'Surgery for Hearing' organized by Pune Otology Group and Dept. of ENT, B.J.Medical College, Pune, February 2006.
  183. Guest Lecture on 'Auditory Neural Prosthesis' at Rajah Muthiah Medical College & Hospital, Annamalai University, Chidambaram, February 2006.
  184. National Guest Lecture on 'Auditory Brain Stem Implantation-Current Status' and Panelist on 'Managing a Deaf Child' at the Pediatric Otolaryngology Workshop & XII Annual Conference of APOI, Lady Hardinge Medical College, New Delhi, February 2006.
  185. Guest Oration on 'Auditory Neural Prosthesis-a window to the future' organized by the Dept of ENT, Stanley Medical College, Chennai, Feb 2006.
  186. Guest speaker on 'Application of Lasers in Otolaryngology' at the AOI, Ongole, Andhra Pradesh, March 2006.
  187. Speaker on 'Auditory Neural Prosthesis-a window to the future' at SRM Medical College, Research Institute and Hospital, Chennai, April 2006.
  188. Guest Oration on 'Auditory Neural Prosthesis-a window to the future' organized by the Indian Medical Association, Thiruchirapalli branch, Thiruchirapalli, May 2006.
  189. Speaker on 'Auditory Neural Prosthesis-a window to the future' at Bezwada Medical Association, Indian medical Association & Association of Otolaryngologists & Head & Neck Surgeons of India, Vijayawada Branch, Vijayawada, May 2006.
  190. President at the 'Current Status of ENT' organized by Madras ENT Research Foundation, Chennai, June 2006.
  191. Invited Guest Speaker on 'Current Status of Cochlear and Brainstem Implants in India' and Humanitarian ORL in the developing world' at the 12th British Academy Conference in Otolaryngology, Birmingham, United Kingdom, July 2006.
  192. Guest Lecture on 'Ossiculoplasty, Cochlear Implantation in very young children with abnormal cochlea, Prevention and management of complications in Acoustic Neuroma surgery' at the '1st UKM Neuro Otology Course' organized by Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia, Sept 2006.
  193. Guest Lecture on 'CP Angle Endoscopy' at the conducted by Department of Otolaryngology & Head-Neck Surgery, 1st PGI OTOFESS Surgery workshop, Chandigarh, Sept 2006.
  194. Guest Lecture on 'Facial Nerve-Surgeons perspective' at Annamalai University, Rajah Muthiah Medical College & Hospital, Chidambaram, September 2006.
  195. Moderator on 'Cross Fire Session' and Panelist on 'FESS' organized by 10th Tamilnadu Annual State ENT Meet, organized by AOI Chapter of Coimbatore & Nilgiris - Association of Otolaryngologists of India, Ooty, September 2006.
  196. Guest Speaker on 'Developmental Milestones in Hearing' and 'Cochlear Implants for Deaf blind' at 'Rehabilitation of Persons with Deaf blindness and additional disabilities' organized by Clarke-Viataal International Short Course on Deaf blindness and Additional Disabilities, Clarke School, Chennai, September 2006.
  197. Moderator 'WWF Cross Fire on Endoscopic Ear versus Micro Ear Surgery', Panelist 'Learning FESS Indications', presented papers on 'Deafness Detection & Management', 'Vestibular evoked myogenic potentials, its indications and current status', Videostroboscopy in laryngopharyngeal reflux – evolution of a diagnosis' at AOI Tamilnadu 10th Annual Conference 2006, hosted by AOI Chapter of Coimbatore & Nilgiris, Ooty, September 2006.
  198. Guest Speaker on 'Auditory Neural Prosthesis – A window to the future' at the South Zone & 24th AOI Karnataka State Conference –2006, at Jawaharlal Nehru Medical College (KAHE Deemed University), Belgaum, October 2006.
  199. Guest Speaker on 'Cochlear Endoscopy –MERF & Cochlear Implantation – India's place in the world' at CIGICON 2006, the 4th National Conference of the Cochlear Implant Group of India, Kozhikode, Kerala, October 2006.
  200. Delivered Dr. C. Das Oration on 'Auditory Neural Prosthesis – A window to the future' and Guest Speaker on '1. Endoscopy on CP Angle, 2. An overview of Cochlear Implant, and Moderator 'Symposium on Cochlear Implant' at the '19th NEBAOICON 2006' Conference organized by Doctors of Golaghat, Kasiranga, Nov 2006.
  201. Guest Speaker on 'Cochlear Implants-the present & future', Moderator 'Vertebro-basillar insufficiency and Panelist discussion on 'Interesting case histories', at the 'Otoneurology and Audiology Workshop & Vth Henrietta Siebers Batts Oration' organized by Christian Medical College, Vellore, December 2006.
  202. Delivered Late Kudupi Bhujanga Rao Memorial Endowment Oration of University of Mangalore on 'Cochlear Implants – The present and the future' at the Basic Surgical Skills & OSCE workshop in Otorhinolaryngology-Head & Neck Surgery, Department of ENT, K.S.Hegde Medical Academy, Deralakatte, Mangalore, November 2006.
  203. Guest Speaker on 'Cochlear Implantation in Deaf – Blind Children' and delivered lecture on "Hearing milestones" and "Deaf blind" organized by Clarke School, Chennai, January 2007
  204. Delivered a talk on "Recent advances in the management of deafness and current status of cochlear implants" in a live video conference organized by Johnson and Johnson , Chennai , January 2007
  205. Guest Speaker on 'Auditory Neural Prosthesis – Playing the Piano' at the Recent Advances in Head & Neck Surgery – at ENTERACT STAN ENT CME Program, organized by Department of ENT, Stanley Medical College, Chennai, February 2007.
  206. Guest Speaker on "What is New in the Management of Vertigo" at 62nd APICON 2007, organised by the Association of Physicians – India, Goa, February 2007.
  207. Guest Speaker on 'Application of Lasers in Otolaryngology and Head and Neck Surgery' at the National Conference on Photonics for Advanced Technology, Ponnaiyah Ramajayam Group of Institutions, Vallam, Thanjavur, February, 2007.
  208. Panelist at the 'Round – Table' at the 'Hearing Implants – Surgical Alternatives' organised by Med-El, New Delhi, February, 2007.
  209. Guest Speaker on 'Surgical Challenges in Cochlear Implantation' organized by Association of Surgeons of Srilanka, Colombo, February 2007.
  210. Guest Oration on 'Management of a deaf child' organized by IMA, Tanjore Branch, Tanjore February 2007.
  211. Guest Oration on 'What's new in Obstructive Sleep Apnoea' at the Update on ENT Practice 2007, MILENT 2007 organized by Department of ENT, Armed Forces Medical College, Pune, supported by MCCI and ICMR, Pune, March 2007.
  212. Presented paper on 'Auditory Neuro-anatomy' at International update on Electrophysiology organized by MERF Institute of Speech & Hearing, Chennai, March 2007.
  213. Guest Speaker on 'Management of Congenital hearing loss – Current Status and the future of Cochlear and Brainstem implants' Organised by Association of Otolaryngologists of India, Vishakhapatnam, April 2007.
  214. Delivered Dr. Gnanasundari Bose Oration on 'Recent Advances in the Management of Deafness' at TANIMACON-007, 61st State Annual Conference of Indian Medical Association, Thanjavur, May 2007.
  215. Delivered Guest Lectures on '1. Pre-operative evaluation, 2. Medical & Surgical management 3. Pitfalls in management' at a workshop on 'Obstructive Sleep Apnoea' organized by Association of Otolaryngologists of India, Jamnagar Branch, Jamnagar, May 2007.
  216. Delivered Guest lecture on "Fungus-related Sinus Disease" organized by Association of Otolaryngologists of India, Pune May 2007
  217. Panelist at "Webcast", organized by Nicholas Pharma, Pune, June 2007
  218. Delivered Guest Lectures on '1.Canal Wall Mastoidectomy, 2.Facial Nerve Decompression, 3. Inner Ear Surgeries'& Moderator for '1.Myringoplasty, 2. Stapedectomy' sessions at MESIARC Otology Conference organized by Dr.Manoj's ENT Specialty Hospital, Calicut, August 2007.
  219. Guest Oration on "Serous Otitis Media" at PEDISATCON, organized by Indian Association of Pediatrics, Hassan Branch, Hassan, August 2007.
  220. Guest Oration on "Cochlear Implantation in India" at Lateral Skull Base Workshop held at Dr B Nanavati Hospital, Vile Parle, Mumbai, August 2007.
  221. Moderator for Panel Discussion on "Current Status on Cochlear Implant" Panelist for Panel Discussion on "Management of Laryngeal Stenosis" at Association of Otolaryngologists of India, 11th Tamil Nadu State Annual Conference, ROCKENT' 07, Trichirapalli, September 2007.
  222. Participated in AOI South Zone and Kerala State Annual Conference 2007, Thiruvananthapuram, October 2007.
  223. Invited International Guest Faculty at Asia Pacific Symposium on Cochlear Implants (APSCI)-2007, Co-Chair for Panel Discussion on "Intervention Outcomes for Adults and , Children with Hearing Loss", for Panel Discussion on "Candidacy Selection-Adult and Child", Sydney, Australia, October-November 2007
  224. Guest Orations on "Surgical Issues in Cochlear Implantation", "Cochlear Endoscopy" at CIGICON 2007, Pune, November 2007
  225. Panelist for "Panel discussion on difficult surgical situations and solutions" at CIGICON 2007, Pune, November 2007.
  226. Moderator for Panel discussion on "Cochlear Implantation" at International Symposium on Deafness in Childhood, conducted by WHO-Society for Sound Hearing 2030 & Indonesian ORL-HNS Society, Jakarta, Indonesia, December 2007.
  227. Guest Oration on "Discharging Ears – Current Concepts and Management " and "Electronic Ears and Implantation Otology" and Panelist for Panel Discussion on "Controversies in Tonsillitis and its Management" at First Badr Al Samaa ENT Congress, Muscat, Sultanate of Oman, January 2008.
  228. Guest Oration on "Principles and Pearls in Tympana Mastoid Surgery" Moderator of panel discussion on Revision FESS at Kerala's First Live Surgical Workshop on "RESURGENT-2008" organized by Malappuram ENT Chapter & Dept. of ENT, Al Shifa Hospital, Perintalmanna, Kerala, February 2008.
  229. Delivered Guest Lectures on "Surgical Challenges in Cochlear Implantation", "Management of Laryngotracheal Stenosis", "Obstructive Sleep Apnoea Syndrome and Snoring- Developing a rational approach to management", Panelist 'Sinonasal Malignancy' at the 6th SAARC Otolaryngology Head and Neck Surgery Conference-2008, Dhaka, Bangladesh, February 2008.
  230. Delivered A.B.N. Rao Oration on "Auditory Neural Prosthesis" at the Workshop on Laser Surgeries of the Larynx and Head and Neck Lesions at the AOI Hyderabad branch, AOI Andhra Pradesh branch in association with Indo-American Cancer Institute and Research Centre, Hyderabad, Feb 2008.
  231. Guest Lecture on "Cochlear and Brainstem Implantation – Overcoming challenges in a developing country" & Presented a poster on "Cochlear Anomalies' and Syndromes" at 10th International Conference on Cochlear Implants and other Implantable Auditory Technologies, at 10th International Conference on Cochlear Implants and other Implantable Auditory Technologies, San Diego, California, United States of America, April 2008.
  232. Panelist at "Videoconference" organized by Johnson & Johnson, Chennai, May 2008
  233. Guest Speaker on "Common ENT Problems" at Knowledge Sharing Session organized by Ashok Leyland Limited, Ennore, May 2008
  234. Guest Speaker on"Laryngo Tracheal Stenosis" at CME program of Child Trust Medical Research Foundation, Chennai, July 2008
  235. Delivered Dr. PINNAMANENI NARASIMHARAO Memorial Endowment Oration on "Cochlear Implant Surgery - pre operative, surgical technique, post operative care and complications", Guest Lecture on "Posterior Fossa Endoscopy", and Panelist for "Otology and Cochlear Implantation Panel" at CONS Cochlear Implant Surgery, Otology, Neurotology, Skull-Base Workshop organized by Association of Otolaryngologists of India, Coastal Andhra Branch in collaboration with A.O.I A.P State, Visakhapatnam, July 2008
  236. . Panelist at "Videoconference" organized by Johnson & Johnson, Chennai, August 2008
  237. Guest Oration on "Auditory Brainstem Implantation" at International Skull Base Workshop held at Dr B Nanavati Hospital, Vile Parle, Mumbai, August 2008.
  238. Organised 12th Association of Otolaryngologists of India – Tamil Nadu State Branch, Mahabalipuram, September 2008.
  239. Invited Guest Speaker on 'Totally Implantable Hearing Devices & Auditory Brainstem Implants', and Panelist on 'Endoscopic Sinus Surgery' at the Kerala State Branch Annual Conference - KENTCON 2008 organised by AOI Kannur Chapter, Kannur, October 2008.
  240. Guest Speaker on "Cochlear Implants – Current Status" at the AOI AP SOUTHCON 2008 in co-ordination with AOI 4th South Zone & 27th Andhra Pradesh State Conference, Hyderabad, October 2008
  241. Invited Guest Speaker on 1) Rational management of Obstructive Sleep Apnoea', 2) Surgical Challenges in Cochlear Implantation 3) 'CP angle Endoscopy", 4) "Auditory Brainstem Implant – Current status" & moderator for panel on "Jugular foramen lesions" at the 11th International Congress of Iranian Society of Otology, Neurotology, Rhinology, Head and Neck & Aesthetic Surgery, organized by Iranian Society of Otolaryngology – Head & Neck Surgery, Tehran, Iran, October 2008.
  242. Panelist on 'Endoscopic Sinus Surgery' at the ENT Academy Conference on Sinuses and Beyond at Thane, November 2008.
  243. Invited Guest Speaker on "Cochlear Implants – Current Trends" at a meeting organized by Cochlear Corporation & Wickramachi Institute of Speech & Hearing, Colombo, Srilanka, November 2008.
  244. Guest Speaker on Envoy Esteem Breakfast Symposium on 'Totally Implantable Esteem Device', Chaired symposium on 'Auditory Brainstem Implants and future trends', Panelist on 'Cross talk with the Cochlear Implant Industries', Oral poster presentation on '1) Need for a team approach in the habilitation of multiple challenged implantees, 2) To assess the efficacy of different cochlear implant technologies in neural speech coding by using auditory frequency following responses, 3) Study of surgical complications during cochlear implantation, 4) A prospective study of vestibular changes in cochlear implantees, 5) Magnet displacement after cochlear implantation 6) Envoy Esteem 2 device: surgical technique' at the 6th Annual Conference, the Cochlear Implant Group of India, Bangalore, Nov 2008.
  245. Invited Guest to 'New Developments in Hearing Technology - 7th Wullstein Symposium' organized by Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, Wuerzburg, Germany, December 2008.
  246. Invited Guest Speaker on 'Management of Obstructive Sleep Apnoea Developing a rational strategy' & 'Recent advances in diagnosis and Management of Deafness in Children', Panelist on "When the going gets tough, What do the tough do' at the 34th Indian Academy of Pediatric Gujarat State - 32nd Annual Conference of Gujarat State Branch - Association of Otolaryngologists of India 2008 under the auspices of H.M.Patel Medical Care & Education, Karamsad, Gujarat, on December 2008.
  247. Delivered Col. Papatla Endowment Oration on 'Total Implantable Hearing Device' at the Association of Otolaryngologists of India, Hyderabad Branch, Hyderabad, January 2009.
  248. Invited Speaker on 'Totally Implantable Hearing Devices – Current Status and Future directions' at Dr. T.V.Krishna Rao Otology Session, Moderator at the Panel Discussion on ' 1) Laryngo-Tracheal Stenosis, 2)Sleep Apnoea & Snoring' at the 61st National Conference of the Association of Otolaryngologists of India, organized by AOI Rajasthan Chapter, Jaipur, January, 2009
  249. Invited guest speaker on 'Rational management of sleep apnoea' organized by Association of Otolaryngologists of India, Salem Branch, Salem, February 2009.
  250. Invited Guest Speaker 'Recent trend in the management of deafness' organized by Indian Medical Association, Salem, February 2009
  251. Invited Guest Speaker on 'Application of Lasers in the Pediatric Airway' at the International Conference on Photonics, Nanotechnology and Computer Applications (ICOPNAC-2009) organized by PRIST University, Thanjavur, February 2009.
  252. Delivered the first 'TRINITY ORATION' on 'Renaissance in Surgery moving towards - The Bionic Man' organized by MMC Vascular Alumni Meet & Thiruvengadam-Thara Endowment Lectures at the Department of Vascular Surgery, Madras Medical College, Chennai, Feb 2009.
  253. Invited Guest speasker on 'Sleep Apnoea Syndrome' at the Department of ENT, Rajah Muthiah Medical College Hospital, Annamalai University, Chidambaram, March 2009.
  254. Invited Guest speaker on 'Role of Lasers in Otology and Rhinology' at Workshop on Head & Neck Onco-Surgery and Hands-on workshop on Laser surgery in ENT-Head & Neck organized by Department of ENT_Head & Neck Surgery, Kasturba Medical College, Manipal & in association with Foundation for Head & Neck Oncology (FHNO) & AOI Karnataka State Chapter & Manipal branch), Manipal, March 2009.
  255. Invited Guest speaker on 'Total Implantable Hearing Device' at the Advanced ENT & Laser Surgical workshop organized by A.O.I Coastal Andhra branch, Visakhapatnam, Andhra Pradesh, April 2009.
  256. Invited Guest speaker on 'Deafness in Children' organized by Indian Medical Association – Tirupur, Tirupur, April 2009.
  257. Invited International Faculty & Speaker on 'Management of Facial Nerve Neuroma' & ' The facial nerve in Tuberculous Otitis Media', at the XI International Facial Nerve Symposium, Italy, Rome, May 2009.
  258. Invited Speaker on '1)Totally Implantable Hearing Devices the Next Step 2) A Rational Approach to Management of Obstructive Sleep Apnoea' and Panelist on 'Surgical Management of Parotid Tumors' at the 2nd Annual CME-Updates in ENT & Temporal Bone Dissection Workshop organized by Department of ENT & Department of Anatomy, Sikkim Manipal Institute of Medical Sciences, Sikkim Manipal University & Department of ENT, STNM Hospital, Gangtok, Assam, May 2009.
  259. Invited Speaker on 'Developing a Rational Approach in the Management of Sleep Apnoea' & Diseases of ENT and Head & Neck in the Tropical Regions' at the XIX ENT WORLD CONGRESS IFOS 2009, Sao Paulo, BRAZIL.
  260. Invited Speaker for an Annual Oration on 'New Horizons in Otology' at the Association of Otolaryngologists of India, Brihan Mumbai Branch, Mumbai, June 2009.
  261. Invited Speaker on '1. Cochlear Implants 2. Totally Implantable Hearing Device' at the Continuing Medical Education in Surgical Otology (OTOCME-2009)' organized by Department of ENT, Christian Medical College, Vellore, June 2009.
  262. Moderator at the CME on 'World Anti Tobacco Day Commemorative Multi Disciplinary Symposium' at Madras ENT Research Foundation, Chennai, June 2009.
  263. Invited Speaker on '1. Cochlear Implantation in India – Isuues and challenges in a developing country 2. Surgical Challenges in Cochlear Implants, 3. Brainstem Implants – its implications', Moderator on 'Rehabilitation on Cochlear Implants' and Chairperson for 'Diagnostics – Screening for Hearing' at the 10th Asia Pacific Conference on Deafness, Bangkok, Thailand, August 2009.
  264. Delivered Dr. T. MANICKAM ORATION on 'New Frontiers in Otology' at the 27th Karnataka State Conference 2009, at M.R.Medical College & AOI Gulbarga Branch and on 'Laryngo Tracheal Stenosis' organized by Sanofi Aventis, Bangalore, August 2009.
  265. Invited speaker on " Redifining the role of H3 receptors in Vertigo", on Asian Vertigo Day organized by Solvay Pharma India Ltd, Mumbai, Aug 2009.
  266. Invited Guest Speaker on "Totally Implantable Hearing Device" organized by AOI, 27th Karnataka State Conference at M.R.Medical College, Gulburga, August 2009.
  267. Attended the Politzer Society Inc. – "The International Society for Otologic and Science", at London, United Kingdom, September 2009.
  268. Invited Guest Speaker on "1. Frontiers in Otology, 2. Implantable Hearing Aid" at the 28th Andhra Pradesh AOI, Warangal, Sept 2009.
  269. Conducted the Instruction Course on "Otolaryngology in the Tropics and Developing World" at the American Academy of Otolaryngology-Head and Neck Surgery, Sandiego, United States of America, October 2009.
  270. President of the "AOI-5th South Zone & 13th Tamil Nadu State Conference" at Chennai, October 2009.
  271. Moderator at the panel discussion on 'Cholesteatoma' at the XXII North East Branch Association of Otolaryngologists Conference 2009, Silchar, Assam, October 2009.
  272. Invited Guest Speaker on 'The Future of Hearing Solutions', Chaired 'Invited Lectures' & presented papers on 'ECAP measuring Cochlea and nerve anomalies using standard protocol in Nucleus Cochlear Implantees' at the 7th Annual Conference, CIGICON'07, Hyderabad, November, 2009.
  273. Invited Guest Speaker on "Congenital Anomalies in Ear Nose & Throat" at Birth Defects Registry of India, Fetal Care Research Foundation, MediScan, Chennai, November 2009.
  274. Invited Guest Speaker on 'Soft tissue and osseous approach to temporal bone' at the "32nd UKM Temporal Bone Dissection Course 2009" in conjunction with the 7th Asia Pacific Symposium on Cochlear Implants and Related Sciences Pre-congress workshop, Singapore, organized by Dept of Otorhinolaryngology-Head and Neck Surgery, UKM Medical Centre, Kuala Lumpur, Malaysia, November, 2009.
  275. Invited Guest Speaker on 'The Envoy Esteem II: Totally implantable Hearing system - current status', Moderator- on 1.CI Program in Asia – Pacific: From Past to Future, 2. Surgical challenges in cochlear implantation for children with congenital anomalies & syndromic associates – an Indian Experience, 3.Pulsatile stapes in a cochlear implantee with large vestibular agueduct syndrome: an unusual phenomenon or a 'sign' to look for, 4. First Step in Pediatric Auditory Brainstem Implantation – Indian Experience' at the 7th Asia Pacific Symposium on Cochlear Implants and Related Sciences Pre-congress workshop, Singapore, November, 2009.
  276. Delivered Dr. A.R.CHHAYA ORATION on "Breaking the acoustic barrier – Frontiers in Otology" at the 33rd AOI Gujarat State Branch Conference organized by AOI Jamnagar branch & Department of ENT and HNS, M.P.Shah Medical College, Jam Nagar, December 2009.
  277. Invited speaker on "Decision making in management of hearing loss, TICI & TIHA" at the Symposium on Surgery for Hearing Restoration and Panelist on "Obstructive Sleep Apnoea" at the Federation of Maharashtra branches of AOI Annual State Otorhinolaryngology Conference, organized by Maharashtra State ENT Conference 2009, Nashik, December 2009.
  278. Invited speaker on "Conventional Posterior Tympanotomy V/S Veria Technique for Cochlear Implantation" at the 62nd Annual Conference of the AOI, AOICON-2010 at Mumbai, January 2010.
  279. Invited International Faculty at Panels on '1) Pre-op Evaluation Pearl, & 2) Patient selection for ESS' at the Sinus Forum Asia 2010, organised by Purat Perduratan Prince Court Medical Center, Kuala Lumpur, Malaysia, January 2010.
  280. Attended HEARRING Meeting at Antwerp University Hospital, Weurzburg, Germany, February 2010.
  281. Moderator on 'Controversies in Tympano – Mastoid Surgeries' and Panelist on 'Controversies in the Management of Sinonasal diseases' at the CONTINENT – 2010, organized by AOI, Malabar Branch – Peripheral Meet, Perintalmanna, Kerala, February 2010.
  282. Delivered Dr. M.K.Agarwala Oration at the CME 2010, at Nightingale Hospital, organized by AOI NE Branch, Guwahati, Assam, March 2010.
  283. Attended the 9th Advanced Bionics European Investigators' Conference at Amsterdam, Netherlands, March 2010.
  284. Panel member, symposium on "Early diagnosis and management of Pediatric deafness' organized by Shruti ENT Hospital and Cochlear Implant Centre at the South Gujarat Academy of Otlaryngology & Surat Pediatric Association, Surat, Gujarat, May 2010.
  285. Guest Lecture on ‘Sleep Apnea – developing a rational approach’ at the Branch meeting, organized by Karavali branch of the Association of Otolaryngologists of India, Mangalore, Karnataka, June 2010.
  286. Poster presentation on '1. Outcome Children: Speech Perception & Cognition 2. Auditory Brainstem ABI/Midbrain Implants' at the 11th International Conference on Cochlear Implants and other Implantable Auditory Technologies at Stockholm, Sweden, June – July 2010.
  287. Delivered Guest lecture on 'Paediatric Obstructive Sleep Apnoea' at the 35th Annual State Conference of Indian Academy of Pediatrics –Tamilnadu State Conference, TRYPEDICON 2010, Tiruchirapalli August 2010.
  288. Delivered Guest lecture on 'Noise – The Silent Killer' at the Rotary Club of Madras, Chennai, August 2010.
  289. Delivered Guest lecture on 'Management of Traumatic Facial Nerve Injuries' at the 19th Annual Conference of Neurotrauma Society of India, NEUROTRAUMA 2010, Chennai, August 2010.
  290. Delivered Guest lecture on 'Cochlear Implants' at the ENT CME organized by Sree Balaji Medical College & Hospital, Chennai, September 2010.
  291. Delivered Guest lecture on 'Endoscopic Anatomy of CP Angle & Management of CP Angle tumors', and Panelist on 'Benign and malignant tumors of nose and PNS – clinical evaluation and Management' at the 3rd Temporal Bone Dissection Hands on Course and 5th National ENT Update with OSCE workshop in Otorhinolaryngology – Head & Neck Surgery, organized by Department of ENT, K.S. Hegde Medical Academy, Mangalore, September 2010.
  292. Delivered Guest lecture on 'Brainstem Implantation' at All-Russian Congress on Cochlear Implantation with International Partnership at Saint Petersburg, Russia, September-October 2010.
  293. Delivered Guest lecture on 'Borderline indications: ABI vs CI' at HEARRING Meeting at Saint Petersburg, Russia, September 2010.
  294. Delivered Guest lecture on 'Overview of sleep disorders' at the Workshop on Obstructive Sleep Apnoea Syndrome organized by AOI Cochin chapter& Cochin Society of Otolaryngologists for Medical services, Ernakulam. October 2010.
  295. Delivered '18th AOI Karnataka Oration' on 'Future of Cochlear Implants' at the 6th South Zone & 28th Karnataka State ENT Conference, Mysore, October 2010.
  296. Delivered Guest lecture on 'Cochlear Implants vs ABI – the grey zone' , Panelist at the Med-El symposium & Chairperson at the Guest Lectures at the 8th Annual Conference of Cochlear Group of India, CIGICON 2010, organized by Postgraduate Institute of Medical Education and Research, Chandigarh, November 2010.
  297. Organising Chairman, 63rd AOICON 2011 & Tamilnadu State AOI, Chennai, January 2011.
  298. Chaired 'Dr. R.A.P. Cooper Award session, Guest Lecture on 1. Adult Auditory Brainstem Implantation at Dr. Y.N.Mehra Memorial Neurotology Session, 2. Central Auditory processing in Cochlear implantees, 3. Pathophysiology of upper airway disease & co-morbidities, 4. Hearing aids vs cochlear implants – when to refer' at the 63rd AOICON 2011 & Tamilnadu State AOI, Chennai, January 2011.
  299. Invited International Faculty, Chairperson – Otology – Cochlear Implantation, Presented paper on session on 'Otology: Cochlear implantation/Middle ear implants - 1. Challenges of CI in the developing world, 2. Totally implantable middle ear implants' at the ETHICAL OUTCOMES 12th Asia Oceania ORL-HNS Congress, Auckland, New Zealand, March 2011.
  300. Invited International speaker on "Role of surgery in nasal allergies" at AA UCB Allergy Academy, in association with The UCB Institute of Allergy organized by University of Cologne, Germany, March 2011.
  301. Invited Guest speaker on 'Glomus tumors' at the '13th Micro Ear Surgery & Endoscopic Sinus Surgery Workshop, CME & Hands on Cadaver Dissection Course at Vivekananda Institute of Medical Sciences, Ramakrishna Mission Seva Pratishthan', Kolkatta, March 2011.
  302. Invited Guest speaker on 1. Complications of Endoscopic surgery, 2. Revision Endoscopic surgery, 3. Surgery of sphenoid sinus and Sella' organsied by MSD, Kolkatta, March 2011.
  303. Invited speaker on 'Cochlear implantation in India – challenges & the way forward' at the Advanced Bionics International Headquarters, Stafa, Switzerland, March 2011.
  304. Delivered 'AIRS Oration' at the RHINOCON 2011, organized by the All India Rhinology Society, Sikkim, April 2011.
  305. Delivered 'L.N.Prasad Memorial Oration' on 'Auditory neural prosthesis – current status and the future', Panelist on 'Sleep Disorders' at the "Future ENT and Head & Neck Surgery in Developing countries", 7th SAARC ENT Congress, organized by Society of Otolaryngologists of Nepal, Kathmandu, Nepal, May 2011.
  306. Delivered Oration 'Advances in management of deafness' and panelist in 'Management of fungal rhinosinusitis' organized by Dept of Otolaryngology and Head & Neck surgery and Anatomy at Post Graduate Institute of Medical Education and Research, Chandigarh, September 2011.
  307. Delivered '18th AOI-Karnataka Oration' titled 'Glomus tumors and their management' and panelist in 'Hurdles during stapes surgery' at the 29th AOI-Karnataka State Conference – 2011, organised by KLE University's J.N.Medical College & Dept of ENT & HNS, in association with AOI Karnataka Chapter & Belgaum District branch, Belgaum, September 2011.
  308. Invited International Speaker on 'Electro Acoustic Stimulation – the next level' organized by Department of Electronics and Telecommunication, Norwegian University of Science and Technology (NTNU), Trondheim, Norway, October 2011.
  309. Panelist at the Round table on '1. Mastoid cavity obliteration: Concepts & techniques, 2. The relationship between cost and benefits of (aided) hearing restoration' at the 28th Politzer Society Meeting, Athens, September 2011.
  310. Delivered Guest lecture on 'Limits of indication – CI vs ABI' and Electro Acoustic Stimulation – the next level' at HEARRING Meeting at Bradford, United Kingdom, October 2011.
  311. Guest Faculty and Moderator on 'Symposium on Cochlear Implantation' at AOI-SOUTHCON & KENTCON – 2011 in collaboration with 7th South Zone ENT Conference & Kerala State Conference 2011, Calicut, October 2011.
  312. Invited speaker on ' 1. Electro-Acoustic hearing & 2. Auditory Brainstem Implant' at the Advanced Oto-Rhinology organized by AOI Agra, October 2011.
  313. Guest Faculty and invited speaker on '1. Central Auditory Processing in Cochlear Implantees 2. Auditory Brainstem Implantees in Non – tumoral cases' at the '8th Asia Pacific Symposium on Cochlear Implant and Related Sciences', Daegu, Korea, October 2011.
  314. Delivered 'Dr YN Mehra oration' on "Auditory Neural Prostheses - current status & future directions" at the Department of Otolaryngology, Post Graduate Institute of Medical Education and Research, Chandigarh, November 2011.
  315. Invited Speaker Electro-Acoustic Stimulation' & on Panelist on 'Sleep Apnoea' at the 4th International Otolaryngology & Head & Neck Surgery Conference organized by Society of Otolaryngologist and Head-Neck Surgeons of Bangladesh, Dhaka, Bangladesh, November 2011.
  316. Invited Speaker on 'My vision for Otological Services in Nigeria & Introduction to Cochlear Implants' at the First International Otology Conference at Federal Medical Centre Katsina, Katsina, Nigeria, Nov 2011.
  317. Organizing Chairman 'Live surgical Workshop on Obstructive Sleep Apnoea' organized by Madras ENT Research Foundation (P) Ltd, Chennai, December 2011.
  318. Organizing Chairman 'Workshop on Advanced Otology' organized by Madras ENT Research Foundation (P) Ltd, Chennai, January 2012.
  319. Organizing Chairman 'All India Neurotology Update - 2012' organized by Madras ENT Research Foundation (P) Ltd, Chennai, March 2012.
  320. Attended the '5th World Congress for Endoscopic Surgery of the Brain, Skull Base and Spine' at Vienna, March 2012.
  321. Delivered 'Dr. A.K.Gangadharan Memorial Oration' on "New Horizons in Otology', Panelist on 1) Advances in FESS 2) Tympanoplasty at ORIENT 2012 Annual Conference of AOI, Mamalapuram ENT Chapter, Malappuram, Kerala, May 2012.
  322. Guest speaker on "Snoring and sleep Apnoea' at the Department of ENT, Sree Balaji Medical College & Hospital, Chrompet, June 2012.
  323. Panelist on 1) Posterior mesotympanic cholesteatoma 2) "Canal-wall-up, down, reconstruction, or obliteration? Response analyzer)" at the 9th International Conference on Cholesteatoma and Ear Surgery, Nagasaki, Japan 2012.
  324. Guest speaker on 'Auditory Brainstem Implant' at Nectar 2012 organised by ERIS, Bintan, Indonesia, June 2012.
  325. Invited speaker on '1) Paediatric Auditory Brainstem Implant 2) Grey zone between Cochlear Implant & Brainstem Implant' at the Changing Perceptions, Increasing Effectiveness, Embracing Advocacy organized by 11th Asia Pacific Conference on Deafness 2012 in conjunction with the 6th National University Hospital –National University of Singapore, Yong Loo Lin School of Medicine ENT Head Neck Surgery Conference, Singapore, July 2012.
  326. Invited speaker on 'Advances in the management of deafness in Children' at the 5th Annual Scientific Congress of the Sri Lanka College of Paediatricians, Colombo, Srilanka, August 2012.
  327. Conducted Instructional Courses on '1. Auditory Brainstem Implants' & 2. 'Electro Acoustic Hearing & Hearing Preservation', Panelist on ' Cochlear Implantation in very young Children' at the European Academy of Otology and Neuro – Otology, Bratislava, Slovakia, August – September 2012.
  328. Guest Speaker on 'Electro-Acoustic Stimulation', Panelist on '1. Approach to Cerebellopontine Angle and 2. Implantable Solutions for Inner Ear Abnormalities' at the 8th Inner Ear Disease and Cochlear Implant Symposium at Cappadoccia, Turkey, September 2012.
  329. Guest Oration on 'Management of the Hearing Impaired on the Indian Subcontinent' at the 35th Annual Meeting of the American Association of Otolaryngologists of Indian Heritage at Washington D.C, USA, September 2012.
  330. Attended the 2012 American Academy of Otolaryngology – Head & Neck Surgery Foundation at Washington D.C, USA, September 2012.
  331. Guest speaker on 'What the ENT Surgeon expects from the Radiologist' at the 5th Radiological meeting organized by the Tamilnadu & Pondicherry Chapter of Indian Radiological & Imaging Association, hosted by Barnard Institute of Radiology, Madras Medical College & Rajiv Gandhi Government General Hospital, Chennai, September 2012.
  332. Chairperson at 'MERF Oration' at the 15th Tamilnadu State AOI Conference organized by AOI Madurai Branch, Kodaikanal, Sept 2012.
  333. Presented paper on 'Recent Advances in Auditory Neural Prosthesis' & Chaired the session on 'Dr. B.K.Anand Oration' at the 52nd Annual Conference of National Academy of Medical Sciences (India), Chennai, October 2012
  334. Attended 'Hearring Meeting' organized by London Health Sciences Centre in collaboration with Western University, London & Toronto, Canada, October 2012.
  335. Delivered lecture on 'Advances in Otology' at the '6th CME cum Workshop and 2nd Conference of Manipur Branch of Association of Otolaryngologists of India' at Jawaharlal Nehru Institute of Medical Sciences, Imphal, Oct 2012.
  336. Delivered All India Rhinology Society Oration on 'Endoscopic Skull Surgery', Moderator on '1) Revision Frontal Recess Surgery: Stent versus Frontal Rescue' 2) 'Uncinate Process: Preservation v/s Removal in FESS' and Panelist in 'B.S.Ojha Panel Discussion – Rhinobase Surgery' at Annual Conference of All India Rhinology Society at New Delhi, November 2012.
  337. Delivered the 1st CIGICON Oration on 'Auditory Brainstem Implants – Retrospect & Prospect' at the 10th CIGICON, Ahmedabad, Nov 2012.
  338. Invited talk on 'State of recent advances in neural prostheses' at the International Conference on Biomedical Signals and Images (BSSI – 2012) 'Processing towards quality health care research and delivery' at Indian Institute of Technology, Chennai, November 2012 .
  339. Guest speaker on 'Auditory Brainstem Implant' at the Otoneurosurgical workshop-Crossing the Dural barrier organized by Institutes of Neurology & Otorhinolaryngology at Madras Medical College and Rajiv Gandhi Government General Hospital, Chennai, December 2012.
  340. Guest speaker on '1) Developing a rational approach to the surgery of OSA, 2) Auditory brainstem implant – current status, 3) hearing preservation with cochlear implant surgery & electro acoustic hearing', Panelist on '1) Practical evaluation and management of snoring and OSA, 2) Chronic ear surgery 2013' at the 10th GCC Otorhinolaryngology Head & Neck Surgery Conference, 3rd Emirates Rhinology conference & 2nd Arab & Emirates Otology & Audiology Conference, Dubai, United Arab Emirates, January 2013
  341. Invited speaker on '1. Management of Sleep Apnoea & 2. Management of allergic rhinitis' organized by the Indian Association of Paediatricians – Chennai City Branch, Chennai, January 2013.
  342. Invited speaker on 'Enchancing team care in Cochlear Implants & Auditory Brainstem Implants' at the 45th National Conference of Indian Speech & Hearing Association, Chennai, February 2013.
  343. Delivered 'Thiru. M.V.Krishnamurthy Iyer Oration' on 'Coping up with tomorrow's technology today' at Scientific and Academic Forum organized by Mahathma Gandhi Medical College & Research Institute (Sri Balaji Vidyapeeth University), Pondicherry, March 2013.
  344. Invited speaker in sessions on '1. Long Term Results of ABI in Children – Experience of Different Centers 2. CI and ABI in Hypoplastic Cochlea and Cochlear Nerve Experience of Different Centers' at the 2nd Consensus Meeting on Management of Complex Inner Ear Malformations: Long Term Results of ABI in Children and Decision Making Between CI and ABI organized by Hacettepe Cochlear Implant Group, Hacettepe University at Kyrenia, Northern Cyprus, April 2013.
  345. Delivered 'AOI Delhi Guest Oration' on 'Auditory Prosthesis – Current & Future' at the Delhi AOICON 2013, 36th Annual Conference of AOI Delhi Branch, New Delhi, April 2013.
  346. Invited International Speaker on 'Pediatric Auditory Brainstem Implant – Experience from India' at the 2nd Meeting of European Academy of ORL-HNS and CE ORL – HNS at Nice, France, April 2013.
  347. Invited International Moderator / Speaker on ' 1. Future Hearing Device 2. Tropical Medicine in ENT Field-Rhinosporidiosis: Manifestations and Management, Speaker on 'All India Rhinology Society – Allergic Fungal Rhino-Sinusitis: Changing Trends: Diagnostic Workup' Panelist on '1. Active Middle Ear Implant: Totally Implantable Amei: Principles and Selection Criteria 2. International Society for Otologic Surgery and Science (Politzer) – Management of Advanced Cholesteatoma', Instructor on 'Paediatric Auditory Brainstem Implant' Moderator ' 'Future for Hearing' at the 20th IFOS World Congress, Seoul, Korea June 2013.
  348. Invited Speaker on 'Management of retraction pockets' at the International Live Surgical Workshop and CME on Advanced Otology & Phonosurgery – Otolaryngology – 2013, organised at the Government District Hospital, King Koti in Association with AOI Hyderabad Branch, Hyderabad, June 2013
  349. Invited Speaker on 'Current Concepts in Management of Deafness' at the CME organized by Department of ENT, Madurai Medical College, Government Rajaji Hospital & AOI Tamilnadu, Madurai Chapter, Madurai, July 2013.
  350. Organizing Chairperson on '1) Paradigm shift in Rhinosinusitis Nasal polyps: Infectious vs Immunologic diseases, 2) Most Challenging FESS Cases' at ENTERACTIVE Rhinology Forum organized by MSD at Chennai, August 2013.
  351. Guest speaker on '1. Decision taking in the management of OSAS 2. Implantable hearing devices', Panelist on 'Difficult situations in surgery for cholesteatoma' at the 31st Karnataka State Conference of Association of Otolaryngologist's of India – AOIKCON 2013, organized by Kasturba Medical College, Manipal, August 2013.
  352. Delivered Dr. V. Navaneethakrishnan Endowment Oration on 'Dare to dream – a deafness free Tamilnadu' organized by IMA & AOIL, Thiruchirappalli, August 2013.
  353. Delivered Regional Guest Oration on 'Auditory Implants – Present & Future' organized by 32nd Annual Conference of AOI AP State at Guntur Medical College, Guntur, September 2013.
  354. Guest speaker on 'Developing a rational approach to the management of OSA' organized by 3rd India ENT Conclave, Bengaluru, September 2013.
  355. Delivered Achanta Lakshmipathi Oration on "Auditory Neural Prosthesis – a window to the future' at the 53rd Annual Conference of National Academy of Medical Sciences, held at All India Institute of Medical Sciences, Jodhpur, October 2013.
  356. President, '9th Asia Pacific Symposium on Cochlear Implants and Related Sciences' Conference, Hyderabad, November 2013.
  357. Guest Faculty & Presented paper at session on Hearing Loss on 'Grey zone between ABI Cochlear Implants', Moderator at session on 'Tympanoplasty in difficult cases' at 29th Politzer Society meeting and 1st Global Otology Forum, Antalya, Turkey, November 2013.
  358. Delivered Late Dr. Joe De Sa Memorial Oration on 'Implantable devices in Otology' at the Maharashtra State ENT Conference organized by the Federation of Maharashtra State Branches of the Association of Otolaryngologists of India, Pune, December 2013.
  359. Guest Faculty and Speaker on '1. Middle Ear Surgery – Still a challenge? 2. Can we make Cochlear Implants easy & affordable - Current scenario of Cochlear Implants in Indian context 3. Balancing high end technology with basic necessities of the developing world 4. Future developments in Otology' at ENT: Today & Tomorrow, the 37th Annual conference of AOI GSB, in Association with AOI Gujarat State Branch, Rajkot, December 2013.
  360. Conducted 'Symposia on Snoring and Sleep Apnoea' in collaboration with Indian Association of Surgeons for Sleep Apnoea, Chennai, January 2014.
  361. Delivered 'SRM Chancellor Dr. T.R.Pachamuthu Oration in ENT 2013' on 'Dare to dream – towards a deafness free Tamilnadu' at SRM University, Kattankulathur, January 2014.
  362. Speaker in Invited Talk on 'Anatomical dissection of Inner Ear', Key Note address on 'Obstructive Sleep Apnoea', Moderator at a Panel on 'Fungul Sinusitis', Panelist at the Cross Fire – 'Balloon Sinuplasty VS Conventional FESS' at the 66th Annual Conference of the Association of Otolaryngologists of India AOICON 2014, organized by AOI Mysore Branch & JSS University, Mysore, January 2014.
  363. Guest lecture on 'Principles & Practice of OSA surgery' at the 2nd National Conference on Snoring and Sleep Apnoea, IASSACON2014, Calicut, February 2014.
  364. Guest Lecture on 'Expanding frontiers in Otological Implants' at the Implants in Otology – 2014, organized by Department of ENT & HNS, Army Hospital (R & R), Delhi Cantt, February 2014.
  365. Co-ordinator at the Panel discussion on 'Cochlear Implants' & 'Obstructive Sleep Apnoea' at the Annual Otology Review 2013 organized by CIPLA, Mumbai, February 2014.
  366. Delivered Homi Gandhi Keynote Oration on 'The role of the Nose in the management of Obstructive Sleep Apnoea' and Panelist in the Nose Panel discussion on 'Controversies in the management of Allergic rhinitis' at the MUMBAICON – 2014, organized by AOI, Mumbai branch, Mumbai, March 2014. .
  367. Key note Address on 'World TB Day' at Raj Bhavan organized by HUMA Specialities Hospitals, Chennai, March 2014.
  368. International Speaker on '1. Cochlear Implantation in Advanced Otosclerosis and after Stapes Surgery & 2. Late Surgical Revisions in Stapedectomy – Is it worth the effort?' and Panelist in the Round Table on 'Genetics of Otosclerosis' at the 3rd International Symposium on Otosclerosis and Stapes Surgery, Siofok, Hungary, April 2014.
  369. International Speaker on 'Cochlear & Auditory Brainstem Implants – the grey zone between' & Panelist on 'CI – Difficult cases' at the 3rd Otology and Neurootology Congress, Antalya, Turkey, May 2014.
  370. Invited Speaker on 'Defining the grey zone between Cochlear Implants and Auditory Brainstem Implants' at the Decision making in Pediatric Otorhinolaryngology' at ESPO Dublin 2014, Dublin, May – June 2014.
  371. International Faculty & 1. Panelist at the Round Table on 'Young Children', 2. Invited Speaker at the Round Table on Auditory Brainstem Implants (ABI) & Beyond on 'ABI or CI' at the 13th International Conference on Cochlear Implants and Other Implantable Auditory Technologies, Munich, Germany, June 2014.
  372. Program Moderator at the scientific web conference on 'Obstructive Sleep Apnea Induced Migraine', Chennai, June 2014.
  373. Invited speaker on 'ENT Disorders in Diabetes' organized by Dr. Mohan's International Diabetes Update 2014, conducted by Dr. Mohan's Diabetes Specialitie Centre, Chennai, July 2014.
  374. Co-ordinator, at the Symposium on Sleep Apnoea organized by the Department of ENT, Chengalpattu Medical College & Hospital & The Tamilnadu Dr. M. G. R Medical University, Chengalpattu, July 2014.
  375. Invited speaker on 'Introduction and evaluation of sleep disordered breathing', Moderator at a Panel discussion at the CME Masterclass in ENT Sleep/Snoring/OSA, organized by Department of ENT, SRM Institutes for Medical Sciences, Arumbakkam, Chennai, July 2014.
  376. Invited speaker on ‘Advances in the Management of Pediatric Deafness’ at Madurai PEDICON 2014 – 39th Annual State Conference of IAP – TNSC, organized by IAP – Madurai Branch, Madurai, August 2014.
  377. Invited International speaker on ‘1. Pediatric Brainstem Implantation, 2. Challenges in Cochlear Implantation, 3. Cochlear Implant Complications’ & Panelist in ‘Implantable Solutions for Chronic Otitis Media’ at the 9th Inner Ear Disease and Cochlear Implantation Symposium in co-ordination with Izmir Bozyaka Teaching & Research Hospital Cochlear Implant Centre, Cesme – IZMIR, Turkey, September 2014.
  378. Speaker on ‘Introducing Modern ENT’ at ENT & Pediatric Meet 2014, Chennai, September 2014.
  379. Invited speaker on ‘Pediatric Brainstem Implants in India’ at the Satellite Meeting of American Academy of Otolaryngology – Head & Neck Surgery and the Middle Eastern Otorhinolaryngology Societies, Orlando, United States of America, September 2014.
  380. Moderator panels on ‘1. Cochlear Implants 2. Medico-Legal implications pertaining to ENT practice’ at the 17th Annual Tamilnadu State AOI Conference and Live surgery workshop, organized by AOI – Coimbatore, Tirupur & Nilgiris Branch, Coimbatore, September 2014.
  381. Key note Lecture on ‘Evolution of Sleep disordered breathing surgery: Past, present & future’ at 2nd SGRH Sleep Disordered Breathing surgical workshop organized by Sir Ganga Ram Hospital, New Delhi October 2014.
  382. Chairperson for session on ‘1. Single stage transmastoid drainage of the Otogenic abscess & 2. Cochlear Implants’, Guest Speaker on ‘1. Paediatric Brainstem Implants & 2. Cochlear Implants challenges and solutions’ at the 9th SAARC ENT Congress in collaboration with the College of Otorhinolaryngologists & Head and Neck Surgeons of Srilanka & SAARC Association of Otorhinolaryngologists, Colombo, Srilanka, Oct 2014.
  383. Delivered Guest Lecture on ‘Touching New Horizons in Otology’ and Moderator on ‘Unsafe CSOM & its complications’ at NEBAOICON – 2014 at the 27th Annual Confernce of North Eastern Branch of Association of Otolaryngologists of India, organized by Agartala Government Medical College, Tripura, October 2014.
  384. Delivered Key note address on ‘Challenges and opportunities in Indian healthcare’ at the Healthcare Conference organized by Confederation of Indian Industry, Chennai, November 2014.
  385. Guest lecture on ‘Past, Present & Future of Lasers in ENT at the ‘LASENT FORCE – 2014’ workshop on Lasers in ENT & OSA organized by the Department of Otolaryngology & Head & Neck Surgery, Armed Forces Medical College & AOI, Pune, November 2014.
  386. Delivered State AOI Oration on ‘Future of Otology’ at 32nd UP AOICON – 2014, Lucknow, November 2014.
  387. Moderator at a symposium on ‘Pushing the envelope with hearing solutions’ at the Implantation Otology: Pushing the Envelope, CIGICON 2014, 12th Annual National Conference of the Cochlear Implant Group of India, New Delhi, November 2014.
  388. President of Indian Academy of Otorhinolaryngology Head & Neck Surgery Conference, Chennai, December 2014.
  389. Speaker on ‘Auditory Brainstem Implants in Children – Is it worth the effect?’ at the AOICON 2015, 67th National AOI Conference at Raipur, January 2015.
  390. Speaker on 1. ‘Switched on for life: Benefits for children access to hearing loss care’ 2. ‘Challenges for developing a Cochlear Implant program for India – Lessons learnt from Tamilnadu’, Chairperson on ‘Research areas and Funding priorities in action for better hearing’ at Sound Hearing 2030 World Congress 2015, 1st World Congress on Ear and Hearing Care, New Delhi, February 2015.
  391. Speaker on ‘Hearing rehabilitation beyond Cochlear Implants’ at the Paediatric Otorhinolaryngology CME & Hands on Paediatric Airway Workshop organized by Paediatric ENT Unit, Christian Medical College, Vellore, February 2015.
  392. Speaker on ‘1. Parotid surgery 2. Surgery of the lateral skull base’ at the Department of ENT, SRM Institutes for Medical science, Vadapalani, Chennai, February 2015.
  393. Chairperson at session on ‘Asian and Indian perspective of surgery and OSA’ at the 6th World Congress on Sleep Medicine, Seoul, Republic of Korea, March 2015.
  394. Panelist at a session on ‘Otology/Neuro-otology’ at JLO Study Day 2015, as JLO – RSM Visiting Professor, London, United Kingdom, UK, April 2015.
  395. JLO Visiting Professor Lecture on ‘Otological needs in low resource settings – challenges and solutions’ at the Royal Society of Medicine, London, UK, May 2015.
  396. Guest speaker as JLO – RSM Visiting Professor on ‘Lessons in Optimizing Health Care Resources’ at MCH 2nd Annual Conference, Edge Hill University, Wrightington, Wigan & Leigh NHS Foundation Trust, Manchester, UK, May 2015.
  397. Guest speaker on ‘Auditory Brainstem Implants in Children’ at the Joint Spring Meetings of the Midland Institute of Otology at the University Hospitals, Birmingham NHS Foundation Trust, Birmingham, as JLO – RSM Visiting Professor, Birmingham, UK, May 2015.
  398. Guest speaker on ‘Paediatric Auditory Brainstem Implants in Current Status and new insights’ at the Royal College of Surgeons, Ireland as JLO – RSM Visiting Professor, Dublin, Ireland May 2015.
  399. Panelist on Plenary session “Messages To Take Home’ at the II. Vertigo Academy International, Moscow, Russia, May 2015.
  400. Guest speaker on ‘Diabetes Mellitus and ENT Disorders’ at Improving Self Care, Achieving the Goal’ - Fifth Annual Professional Conference Diabetes Club Of Trichirapalli (DCT) DCTCON 2015, Tiruchirapalli, May 2015.
  401. Speaker on 1. ‘ Complicated Surgical cases for CI’ & 2. ‘ Implantable Solutions for single side deafness’, at the 30th Politzer Society Meeting, 1st World Congress Otology, Niigata, Japan, June – July 2015.
  402. Invited speaker on ‘Maneuvers for Vertigo’ & Panelist on ‘Management of BPPV’ at Vertigo Day 2015, Goa, July 2015.
  403. Guest speaker on ‘The need of the hour’ at the ENT Pediatric Forum 2nd Annual meeting, One Airway one approach, Chennai, July 2015.
  404. Guest speaker on ‘Cochlear Implants - Current status & future directions’ at the Cochlear Implant Program organized by Department of ENT, SRM Medical College Hospital & Research Centre, Kattankulathur, Kanchipuram District, July 2015.
  405. Guest speaker on ‘Improving surgical results in Septoplasty, Terbunoplasty with special reference to FESS and improving outcomes beyond sinuses’ organized by Wockhardt, ENT Alliance – Partnering progress in ENT Science – Improving Surgical Outcomes, New Delhi, August 2015.
  406. Guest speaker on ‘Tuberculosis Otitis Media’ at 5th ENT Conclave 2015, Chennai August 2015.
  407. Guest Speaker on ‘Role of lasers in early carcinoma larynx’ at HANOCON 2015 Head & Neck Oncology conference organized by SRM Institutes for Medical Sciences, Chennai, August 2015.
  408. Guest Speaker on ‘1. Rational approach to surgery of Sleep Apnoea 2. Future trends in management of Sleep Apnoea’ at the 8th Annual CME Updates in ENT – Obstructive Sleep Apnoea, organized by Department of ENT & HNS, Sikkim Manipal Institute of Medical Sciences & Department of ENT, HNS, STNM Hospital, Gangtok, August 2015.
  409. Guest Speaker on ‘Emergencies in ENT Practice – Role of the family physician’ at the ‘2nd ENT Oration’ organized by IMA Tambaram, Tambaram, September 2015.
  410. Attended 18th Annual Tamilnadu State AOI Conference, Kanyakumari, September 2015.
  411. Guest Speaker in the session ‘Intricacies of Engine – Anatomical determinants impacting Auditory Brainstem Implantation’, Moderator at ‘Middle ear Implants and Bone conduction Implants: Do they have a significant role in Indian Scenario, Panelist on ‘Malformed Cochlea/Hypoplastic nerve panel’ at the CIGICON 2015, 13th Annual Conference of Cochlear Implant Group of India organized by SMS Medical College, Jaipur, September 2015.
  412. Delivered ‘5th Shri. S.P.Sharma Memorial Oration’ on Frontiers in Otology at the 39th AOI North West Zone Annual Conference, 39th NWZ – AOICON 2015, Chandigarh, October 2015.
  413. Guest Speaker on ‘Auditory Brainstem Implantation’ at Nectar 2015, Aamby Valley, October 2015.
  414. Invited Speaker on ‘Pathophysiology of BPPV. What happens to outlets in the SSC in long term if not repositioned’ and Moderator in ‘Hearing rehabilitation in Meniere’s disease’ at the 7th Meniere’s Disease and Inner Ear Disorders, Rome, Italy October 2015.
  415. Invited Speaker on ‘Current stataus and future directions’ at organized by Department of ENT, J. N. Institute of Medical Sciences, Porompat, & Manipur Branch of Otolaryngologists of India, Manipur, October 2015.
  416. Guest speaker on ‘Pediatric Auditory Brainstem Implants’ and Hard Talk on ‘SWOT (Strength, Weakness, Opportunities & Threat) Analysis’ at IAOHNS 2015, 2nd Annual Conference of Indian Academy of Otorhinolaryngology, Head & Neck Surgery, PGIMER, Chandigarh, October 2015.
  417. Delivered XIII S. Kumar’s Oration on ‘Frontiers in Otology’ at Gauhati Medical College and Hospital, organized by Gauhati University and Association of Otolaryngologists of India, Guwahati, November 2015.
  418. Guest speaker on ‘Frontiers in Otology – Where do we go next in Otology’ at the ‘CME – cum – cadaveric Temporal Bone Dissection workshop’ held at Tripura Medical College and Dr. BRAM Teaching Hospital, Agartala, November 2015.
  419. Guest speaker on ‘With or without : Do we need to fixate the implant?’ at the 4th Munich Hearing Implant symposium on Hearing Implants around the world at Munich, Germany, December 2015.
  420. Invited speaker on ‘Management of a deaf child’ organized by Department of Otorhinolaryngology at the Government Royapettah Hospital, Chennai, January 2016.
  421. Guest speaker on ‘Vertigo: Clinical approach & management’ at Translating Evidence to Practice – Indian perspective, APICON 2016, Hyderabad, January 2016.
  422. Invited speaker on ‘1. Complications of Cochlear Implants, 2. Auditory Brainstem Implants – future directions’ at the National Seminar on Implantable Hearing Solutions (NSIHS) - 2016 at Apollo Hospitals, Jubilee Hills, Hyderabad, February 2016.
  423. Invited speaker on ‘Clinical application of Radio imaging techniques in the management of auditory abnormalities’ at the National Seminar on ‘Radiology and Audiology, Speech Language Pathology – 2016 at the Upgraded Institute of Speech Hearing, Madras Medical College and Rajiv Gandhi Government General Hospital, Chennai, March 2016.
  424. Keynote address on ‘Implantable Hearing Devices – Now and Beyond’ at the national workshop organized by AUDISHCON, Department of Hearing Studies at Dr. S.R. Chandrasekhar Institute of Speech and Hearing, Bangalore, March 2016.
  425. Inaugural guest lecture on ‘Surgical Management of Obstructive Sleep Apnea’ at the CME on Obstructive Sleep Apnea Syndrome organized by Department of Otorhinolaryngology, Kilpauk Medical College, Chennai, March 2016.
  426. Guest speaker on ‘A glimpse into the timeline of OSA’ at the 4th National Conference organized by Indian Association of Surgeons for Sleep Apnoea (IASSACON 2016), Mumbai, April 2016.
  427. Special address on ‘In pursuit of viable high quality health care’ at the Tamil Nadu Health Summit 2016, Invest, Innovate, Insure, Introspect organized by Confederation of Indian Industry, Chennai, April 2016.
  428. International Guest speaker on ‘1. CI in Emerging countries: Challenges & opportunities - Developing a comprehensive self – sustaining model in the developing world – Experience from India, 2. CI in abnormal Cochlea: Paediatric ABI: Anatomical determinants that influence outcomes, 3. Revision and dealing with missteps: Revision CI surgery: Experience in a tertiary care centre’, Panelist ‘1. Outcomes of CI: Predicting and improving outcomes in CI, 2. Alternatives to posterior tympanotomy 3. Cochlear Implantation: Tips and Pearls, 3. Revision and dealing with missteps’ at the 1st World Congress on Cochlear Implants in Emerging Countries organized by 13th Annual Middle East Update in Otolaryngology Conference and Exhibition: Head & Neck Surgery, Dubai, May 2016.
  429. International guest speaker on ‘1. Chronic ear diseases in developing world 2. Difficult situation in Cholesteatoma surgery 3. Video workshop – Big Cholesteatoma: How I do it’ at the CHOLE 2016, 10th International Conference on Cholesteatoma and Ear Surgery, Edinburgh, United Kingdom, June 2016.
  430. Guest speaker on ‘Current status and future of Otology’ in the Department of ENT at Gauhati Medical College, Gauhati, June 2016.
  431. Guest speaker on ‘Evolution of Pediatric airway surgery – a time course’ at the 3rd International Update on Management of Pediatric Airway and swallowing disorders under the auspice of IAOHNS & AOI Bangalore, MH Academy, Manipal Hospitals, Bangalore, July 2016.
  432. Guest speaker on ‘Emergencies in Pediatric Practice’ at Mamalla Pedicon 2016, organized by Indian Academy of Pediatrics at the 41st Annual Conference of IAP-TNSC, Mahabalipuram, August 2016.
  433. Key note speaker on ‘New Horizons in Otology’ at the Felicitation function and Continuing Medical Education Program, organized by Department of ENT and AOI Madurai Chapter, at Velammal Medical College Hospital & Research Institute, Madurai, August 2016.
  434. Delivered ‘1st Prof. Kannaiyan Endowment Oration’ on ‘Frontiers in Otology’ at Tanjore Medical College, Tanjore, August 2016.
  435. Chairman at the Planery session, Speaker on 1. ‘Introduction to the audiological effects of noise’ at the IMA/IOHNS International Noise & Hearing Conference, 2. Auditory Brainstem Implant – Where do we stand 3. Cochlear Implants – Complications’ at the IAOHNS 2016, 3rd National Conference of Indian Academy of Otorhinolaryngology, Head & Neck Surgery at Kolkata, August 2016.
  436. Talk at a symposium on ‘Scleroma, Rhinosporidium & Hansen’s disease’ Moderator & Panelist on ‘Aetiology and Management of Tropical Diseases in Otolaryngology Head –Neck Surgery’, Co-author in 1. ‘A simple economical protocol for drug induced sleep endoscopy in OSAS’, 2. ‘Prevalence of OSAS in syndromic children: Pilot study’ at the AAO-HNSF Annual meeting & OTO Expo 2016, San Diego, USA, September, 2016
  437. Guest Speaker on ‘Future of Cochlear Implantation’ at the Oto – Kan – 2016, Live surgical workshop on Ear surgery and Hands on Temporal Bone dissection organized by Department of ENT, KGMCH, Kanyakumari, October 2016.
  438. Guest Speaker on ‘Complications of Cochlear Implant surgery and its management’ at the Live Surgical Workshop on Contemporary Otology organized by Department of Otorhinoloaryngology and Head & Neck Surgery at Sir Ganga Ram Hospital, New Delhi, October 2016.
  439. Delivered Uttar Pradesh State Oration on ‘Frontiers in Otology’ at the 34th Annual Conference of AOI, U.P Chapter & IMA Bhawan Bareilly, Bareilly, November 2016.
  440. Guest speaker on ‘A surgeon’s quest for happiness’ at an independently organized TED event at the Indian Institute of Technology, Patna, November 2016.
  441. Invited speaker on ‘Paediatric Auditory Brainstem Implant’, Moderator of a Panel discussion on ‘Cochlear Implants’, Panelist at a discussion on ‘Cholesteatoma’ at the 10th SAARCENT Congress 2106, organized by Society of Otolaryngologists and Head – Neck Surgeons of Bangladesh, Dhaka, Bangladesh, November 2016.
  442. Guest speaker on ‘Resection of parapharyngeal tumors – A Surgical overview’ and Panelist on ‘Ask the Experts session –Surgical controversies and decision making’ at the 1st Head and Neck Surgery update 2016 organised by Department of ENT, Head and Neck Surgery, Sri Ramachandra Medical College & Research Institute, Chennai, December 2016.
  443. Guest Orator on ‘Government sponsored Cochlear Implantantation programmes in India’ at the Cochlear Implant CME 2016, BIMR Hospitals, Gwalior, December 2016.
  444. Guest speaker on ‘1. Future of Implantable devices 2. Managing device failures’ at the National Seminar on Implantable Hearing Solutions2017 organized by Apollo Cochlear Implant Clinic, Apollo Hospitals, Hyderabad, February 2017.
  445. Guest speaker on ‘Update on management of laryngo tracheal stenosis’ at the Cadaveric hands-on dissection / Live surgical workshop / Post-graduate training module in ASCENT2017 ( 1ST All India Sri Ramachandra CME in ENT organized by Department of ENT, Head & Neck Surgery, Sri Ramachandra Medical College & Research Institute, Porur, Chennai, February 2017.
  446. Faculty & Invited speaker on ‘Vestibular consequences of ABI’, short report on ‘Launch of Indian vertigo registry and KAP study’ at the III Vertigo Academy International with participation of 44th Neurootological and Equilibriometric Society Congress, Mumbai, March 2017.
  447. Guest speaker on ‘Defining the future of Otology’ at the 1st Basic to Advanced Temporal bone Dissection Workshop, organized by ENT & Head – Neck Hospital and Institute, Agargaon in collaboration with Bangladesh Society of Otology, Dhaka, Bangladesh, March 2017.
  448. Guest speaker on ‘Genetics basis of deafness’ at the Cochlear Implant workshop organized by Department of ENT, Gauhati Medical College, Gauhati, March 2017.
  449. Delivered Maharajah of Travancore Curzon Lectureship on ‘Revolutionising the management of Congenital Deafness: Newer Approaches’ at Department of Genetics, Dr. A.L. Mudaliar Post Graduate Institute of Basic Medical Sciences, Taramani, University of Madras, Chennai, March 2017.
  450. Guest Lecture on ‘Defining the boundaries of Otology’ at TORIDE 2017, organized by Siddham ENT Hospital, Jaipur, March 2017.
  451. Guest lecture on ‘Developing a sustainable model for the developing world’ & Panelist on ‘Abnormal Cochlea’ at the British Cochlear Implant Group, Birmingham, UK, March 2017.
  452. Guest lecture on ‘Paediatric ABI – The MERF Experience’ and Panelist on ‘Overcoming hearing loss: A roadmap for the next decade’ at Hearing Implants Conclave, New Delhi, March 2017.
  453. Invited speaker on ‘1. Anatomy of the temporal bone 2. Cochlear Implants and Brainstem Implants’ at the 36th Temporal Bone Surgical Dissection Course organized by ENT Department, King Saud University, College of Medicine, University Medical City, King Abdulaziz University Hospital, Riyadh, Saudi Arabia, March 2017.
  454. Invited speaker on ‘1. Current status and future of Otology 2. Genetics of sleep disorder’ at the IASSACON 2017, 5th Annual Conference of Indian Association of Surgeons for Sleep Apnoea’, New Delhi, April 2017.
  455. Delivered ‘Shri Keshvanand & Smt.Vidhyawati Memorial Oration’ on ‘Defining the new horizons in Otology’ & lecture on ‘Post traumatic facial nerve decompression’ at the USAOICON-2017, XIIth Annual Conference Association of Otorhinolaryngologists of India – Uttarakhand State, organized by Shri Guru Ram Rai Institute of Medical &Health Sciences in Association with AOI Dehradun Branch, Dehradun, April 2017.
  456. Key note speaker on ‘How to develop Auditory Brainstem Implant program in a developing world’, Moderator on ‘Auditory Brainstem Implant’, Panelist on ‘1. Ossified Cochlea & 2. Challenges in Paediatric Cochlear Implants’ at the Annual Meeting of Middle East Academy of Otolaryngology and Head & Neck Surgery, Dubai, April 2017.
  457. Guest speaker on ‘Frontiers in Otology’ at the Department of ENT, Vinayaka Mission’s Kirupananda Variyar Medical College & Hospitals, Salem, April 2017.
  458. Guest speaker on ‘Recent advances in the management of Meniere’s disease’ at the 10th Annual CME Updates in ENT, Neurology and Live Surgical Workshop and Advanced Temporal Bone Dissection in Cadaver, organized by ENT & HNS, Sikkim Manipal Institute of Medical Sciences and STNM Hospital, Gangtok, May 2017.
  459. Invited speaker on ‘1. Cochlear implants in developing country & 2. Humanitarian services in Otolaryngology in the developing world / Developing a state governmental Cochlear Implant program in Tamilnadu, India’ at IFOS ENT World Congress, Paris 2017, Paris, June 2017.
  460. Invited Speaker on ‘New frontier in Cochlear Implants’ at the Breathing Expert Forum 2107, organized by Indian Academy of Otorhinolaryngology and Head & Neck Surgery, Chennai, June 2017.
  461. Invited speaker on ‘A surgeon’s quest for happiness’, an inspirational talk to Under Graduate students at Coimbatore Medical College, Coimbatore, June 2017.
  462. Invited speaker on ‘A practical approach to Vertigo’ at the Association of Otorhinolaryngologists of India, Coimbatore Chapter, Coimbatore, June 2017.
  463. Invited speaker on ‘New frontiers in Cochlear Implantation’ at the Breathing Experts Forum organized by Indian Academy of Otolaryngologists and Head & Neck Surgeons, Mumbai, August 2017.
  464. Delivered Jagadguru Dr. Sri Shivarathri Rajendra Mahaswamiji Memorial Annual Oration on ‘Coping with tomorrow’s technology today’ organized by Academic Society, JSS Medical College, Jagadguru Sri Shivarathreeshwara University, Mysuru, July 2017.
  465. Invited speaker on ‘Overview of Sleep Apnoea’ at the CME cum Workshop on Recent advances on Obstructive Sleep Apnoea – Regional Perspective’, organized by Dept of ENT, J.N. Institute of Medical Sciences, Porompat, Manipur, Imphal, August 2018.
  466. Guest of Honour & Invited speaker on ‘Advances in Cochlear Implantation’ at the ENT Update 2017, Commemorating the 50th Cochlear Implant surgery at Government Rajaji Hospital, organized by Department of ENT, Madurai Medical College, Madurai, September 2017.
  467. Guest speaker on ‘Cochlear Implants in developing countries – The Indian Prespective’ at the American Academy of Otolaryngology-Head and Neck Surgery, Chicago, September 2017.
  468. Guest Speaker on ‘A doctor’s quest for happiness’ at ‘The Skills and Pills’ workshop symposium organized by SRM Medical College Hospital and Research Center, Kattanlulathur, September 2017.
  469. Plenary speaker on ‘Pediatric Brainstem Implantation – Current concepts and Future Directions’, Moderator at ‘Auditory Brainstem Implantation in Children’ at the 11th Asia Pacific Symposium on Cochlear Implants and Related Sciences, Northern Cyprus, September 2017.
  470. Delivered Nilkanth & Saroj Apte Oration on ‘Genetics of voice and its disorders’ at the World Laryngology Summit 2017 and 6th Annual Conference of Laryngology & Voice Association at Rajarajeshwari Medical College and Hospital & NIMHANS Convention Center, Bengaluru, September 2017.
  471. Delivered Dr. Ekanadham M. Oration on ‘Frontiers in Otology’ at AOI TS CON 2017, 3rd Telangana State Conference organized by SVS Medical College/Hospital, Mahaboobnagar, September 2017.
  472. Panelist at the ‘Confluence of Surgical minds – Interdisciplinary surgical symposium’ organized by 63rd ICS IND CONFERENCE – ICS IS CON 17, Chennai, October 2017.
  473. Guest speaker on ‘Genetics: The new frontier in otorhinolaryngology’ aand Chairperson at the “The Experts perspective on Current concepts in the Management of Angiofibroma’ at the Breakthrough to Excellence in Otorhinolaryngolgy at ORIENT. Goa, October 2017.
  474. Delivered Dr. Abdul Hakim Memorial Oration on ‘Frontiers in Otology’, Moderator, Panel discussion on ‘Cholesteatoma revisited’ and Guest speaker on ‘Implants in Otology’ at the 30th Annual Conference of North Eastern Branch of the Association of Otorhinolaryngologists of India, in association with Assam Medical College and Hospital, Dibrugarh, October 2017.
  475. Guest speaker on ‘Anatomical Variations and their correlations with outcomes in ABI’ at Hearring meeting organized by MedEl, Perth, November 2017.
  476. Delivered MMC Institute Day Oration on ‘Management of far advanced Otosclerosis’ at the Upgraded Institute of Otorhinolaryngology, Madras Medical College and Rajiv Gandhi Government General Hospital, Chennai, November 2017.
  477. Faculty at Breathing Expert Forum 2017, Delivered IAOHNS Oration on ‘Paediatric ABI – Anatomical & Functional consideration’ & Moderator for Panel on ‘Medical Education & career guidance’ at ENTERACT 2017, 4th Annual Conference of Indian Academy of Otorhinolarngology, Head and Neck Surgery, AFMC, Pune November 2017.
  478. Panelist at the Round tables on ‘1. Personal Experiences and Recommendations in ABI Surgery, 2. Surgical Strategies in Pediatric ABI, 3. Risks and results in Pediatric ABI Surgery’ at the ABI Workshop: 20th Anniversary of the Med-El ABI at Fulda, Germany, Nov 2017.
  479. Guest speaker on ‘Nuances of te,poral bone surgery’ at the ‘2nd Hands on Temporal Bone Dissection work shop’ organized by Department of Otorhinolaryngology, Sri Guru Ram Rai Institute of Medical & Health Sciences, Dehradun, November 2017.
  480. Delivered ‘Dr. L. H. Hiranandani Oration’ on ‘Frontiers in Otology’ at the AOI Mid-Term National Conference organized by the Department of ENT & Head & Neck Surgery, KMC, Mangalore, December 2017.
  481. Guest speaker on ‘Surgical Challenges in Cochlear Implant’ at the Breathing Experts Forum in Delhi, organized by Indian Academy of Otolaryngology & Head & Neck Surgery, New Delhi, December 2017.
  482. Delivered ‘Pradhama Oration’ on ‘Management of Advanced Cholesteatoma’ at the ‘Live Surgical Workshop – Pradhama ENT Update’ organized by Pradhama Hospital, Visakhapatnam, December 2017.
  483. Delivered ‘Late Dr. M. G. Tepan Oration’ on ‘Otology: Current Status and Future Directions’ at the Federation of Maharashtra State Branches of the Association of Otolaryngologists of India, MENTCON 2017, 49th Annual Ear Nose and Throat Conference, Mumbai, December 2017.
  484. Guest speaker on ‘1. Basic Temporal Bone Dissection /on choice & 2. Advanced Temporal Bone Dissection’ at the 6th National Institute of ENT Temporal Bone Dissection Course – 2017, NIENT, Tejgaon, Dhaka, Dec 2017.
  485. Guest speaker on ‘1. Secret of Successful Hearing Implants Programme, 2. Viability of CI Program in India’, Panelist ‘1. Safe and Reliable CI, 2. Bilateral Cochlear Implantation’ at the National Seminar on Implantable Hearing Solutions, organised by Apollo Cochlear Implant Clinic, Apollo Hospitals, Hyderabad, January 2018.
  486. Guest Speaker on the ‘Management of Cholesteatoma’ at the 2nd All India ENT Rapid Review CME and Surgical Workshop (ASCENT) organized by the Dept of ENT, Head & Neck Surgery at Sri Ramachandra Medical College & Research Institute, Porur, Chennai, February 2018.
  487. Guest Speaker on ‘India – MERF Outcomes’ at the ABI Workshop – Evolving consensus in Pediatric in Chennai, February 2018.
  488. Guest Speaker on ‘Acoustic versus Electric stimulation in borderline cases’ at the 31st Politzer Society Meeting 2018 and 2nd Global Otology Research Forum at Las Palmas Gran Canaria, Spain, February 2018.
  489. Guest Speaker on ‘1. Summing up of long case (Ear), 2. Cholesteatoma today, 3. BAHA/Cochlear Implantation – Site selection, techniques & markings’ at the CALMED ENT 2018 – a Unique Learning Experience, organized by Dept of ENT, Govt. Medical College, Kozhikode & AOI Malabar Chapter, Calicut, February 2018.
  490. Invited Speaker on ‘Policy Implemntation for Hearing Care’ at the World Hearing Day Seminar organized by WHO Hearing Loss and Deafness program organized by World Health Organization, Geneva, Switzerland, March 2018.
  491. Invited Speaker on ‘Holistic approach to obstructive sleep apnoea’ organized by IASSACON 2018, 6th National Conference, Indian Association of Surgeons for Sleep Apnoea, Mahatma Gandhi Medical College & Research Institute, Pondicherry, March 2018.
  
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