- Delivered the prestigious 'Prof.S.Vittal oration' on Surgery for Chronic pancreatitis-Recent concepts at the annual Tamilnadu & Pondicherry chapter ASI 2012 conference at Thanjavur
- Delivered the Prestigious Dr. Mathias oration on "liver Resection in 2015" at the annual Tamilnadu & Pondicherry chapter ASI conference 2015 at Kodaikanal
- Received the best Doctor award for the Year 2015 from the Govt. of Tamilnadu
List of Publications:
Authored a chapter on Basic surgical techniques, GI anastomosis and staplers in GI surgery in the Surgical Gastroenterology textbook edited by Dr.Sanjiv Haribakthi
- Biliary tract tuberculosis an Enigma. Somasekar RDR, Anand Lakshman, Abdul Rehman, Amudha Anblagan, Kannan Devy Gounder.
- Mediastinal pseudocyst mimicking pseudo achalasia. Durairaj Segamalai,John Grifson, Abdul Rehman,Rajendran Vellaisamy,Sumathi Natarajan,Kannan Devy Gounder, Vol.38.1(Jan - March 2017).
- Sigmoid Colon Endometriosis Mimics Acute colonic Obstruction - A Rare entity Rajendran Vellaisamy, Prabhakaran Raju ,Kannan Devy Gounder Volume 38 No. 2 ( April - June, 2017) of Tropical Gastroenterology.
- John Grifson John Rose, PerungoThirumaraichelvan, Durairaj segamalai, Bennet Duraisamy, AmudhanAnbalagan, Prabakaran Raju, Kannan Devy Gounder Anomolous middle hepatic artery in laparoscopic cholecystectomy: wolf in sheep's clothing. Journal of minimal access surgery accepted on 09.02.2016.
- 5. John Grifson J, Perungo T, Amudhan A, Bennet D, Prabakaran R, Chandramohan S.M, Anand L, Kannan DG Black stomach, Journal of case reports 2016;6(1).44-46.
- 6. John Grifson J, Anand L, Kannan DG, Hepatolithiasis BJS10108 2016.
- Joined the Tamilnadu medical services in the year 1986
- 1986 - 1987 medical officer, Upgrade Primary health center Perambakkam
- 1987 - 1988 Tutor in Surgical gastroenterology madras medical college and govt.general hospital
- 1988 - 1993 tutor in surgical gastroenterology Stanley medical college hospital
- 1993 - 1995 did Mch in Surgical Gastroenterology Madras medical college
- 1995 - 2008 Asst. Professor / Reader Department of surgical gastroenterology Stanley medical college
- 2008 July - 2008 Dec Professor of Surgical gastroenterology Thanjavur Medical college
- 2008 Dec - 2012 Professor of Surgical gastroenterology Kilpauk medical college/Govt. Royapettah hospital
- 2013 till date Professor / Director Institute of Surgical Gastroenterology Madras medical college / Rajiv Gandhi Govt. general hospital
Professional Body Membership:
- International hepato pancreatico biliary association
- Association of Surgeons of India
- Indian Association of Surgical Gastroenterology
- Association of minimal access surgeons of India
- Indian Society of Gastroenterology
- Tamil Nadu chapter of Indian society of gastroenterology
- Association of Endocrine surgeons of India
Languages Known: Tamil, English