• Junior Residency: Three years (July 2002 – June 2005) In PGIMER. Chandigarh. India.
• Senior Residency: Three years (January 2006 – December 2008) In PGIMER. Chandigarh.India. Senior Research Associate (Pool-ship) (Gastroenterology) : 2009-10
• Worked as Consultant - Gastroenterology and Hepatology and Chief Consultant Gastroenterology, Hepatology and Nutrition.

Awards

• Won a certificate of merit in the Secondary Education board Examination
• Stood first in final MBBS (Mysore medical college, University Of Mysore. Mysore.India) and won 13 gold medals and 6 cash prizes
• Won the Rotary Aditya Adhikari award for securing highest marks in first MBBS
• Scored highest marks in Anatomy, Physiology, Medicine Surgery and Obstetrics and gynecology in MBBS
• Won bronze medal in MD examination (Post Graduate Institute Of Medical Education & Research, Chandigarh. India)
• Won the best free paper award for “Pancreatic pseudocysts at atypical locations- endoscopic management.” at Indian chapter of International Hepato-Pancreato-Biliary Association annual meeting 2009, Bangalore
• Won cash prize for the posters presented at APDW 2008, New Delhi.

• Dutta U, Poornachandra KS. Heparanase and gallbladder cancer: new insights into understanding tumor growth and invasion. J Gastroenterol Hepatol. 2008 Mar; 23(3):343 4.
• Rajagopala S, Dutta U, Poornachandra KS, Bhatia P, Varma N,Kochhar R. Visceral leishmaniasis associated hemophagocytic lymphohistiocytosis--case report and systematic review. J Infect. 2008 May;56(5):381-8. Review.
• Dutta U, Poornachandra KS. Gallbladder polyps: How to pick up the sinister ones. J. Gastroenterol. Hepatol. 2009: 24:175-8.
• Singla V, Galwa RP, Khandelwal N, Poornachandra KS, Dutta U, Kochhar R. Wandering spleen presenting as bleeding gastric varices. Am J Emerg Med. 2008 Jun; 26(5):637.e1 4.
• Doley RP, Yadav TD, Wig JD, Kochhar R, Sing G, Bharathy KGS, Kudari A, Gupta R, Gupta V, Poornachandra KS, Dutta U, Vaishnavi C. Enteral nutrition in severe acute pancreatitis.. J Pancreas (Online) 2009; 10(2):157-162.
• Kochhar R, Jain K, Gupta V, Singhal M, Kochhar S, Poornachandra KS, Kochhar R,Dutta U, Nagi B, Singh K, Wig JD. Fistulization in the GI tract in acute pancreatitis. Gastrointest Endosc. 2012 Feb;75(2):436-40.
• Noor MT, Dixit P, Kochhar R, Nagi B, Dutta U, Singh K, Poornachandra KS. NSAIDs-Related Pyloroduodenal Obstruction and Its Endoscopic Management. Diagn Ther Endosc. 2011;2011:967957
• Bhadada SK, Kochhar R, Bhansali A, Dutta U, Kumar PR, Poornachandra KS, Vaiphei K, Nain CK, Singh K. Prevalence and clinical profile of celiac disease in type 1 diabetes mellitus in north India.
• J Gastroenterol Hepatol. 2011 Feb;26(2):378-81. Wig JD, Gupta V, Kochhar R, Doley RP, Yadav TD, Poornachandra KS, Bharathy KG, Kalra N. The role of non-operative strategies in the management of severe acute pancreatitis. JOP. 2010 Nov 9;11(6):553-9.
• Poornachandra KS, Bhasin DK, Nagi B, Sinha SK, Rana SS, Shafiq N, Greer K,Gupta R, Kang M, Malhotra S, Singh K. Clinical, biochemical, and radiologic parameters at admission predicting formation of a pseudocyst in acute pancreatitis. J Clin Gastroenterol. 2011 Feb;45(2):159-63.
• Deepa AS, Padegal VA, Chandra KSP, Santhosh HK. Gastric and pulmonary sarcoidosis complicated by hypercalcemia and acute renal failure: Case report and literature review. Lung India. 2017 Jul- Aug;34(4):380-382.
• Kochhar R, Poornachandra KS, Puri P, Dutta U, Sinha SK, Sethy PK, Wig JD, Nagi B, Singh K. Comparative evaluation of nasoenteral feeding and jejunostomy feeding in acute corrosive injury: a retrospective analysis. Gastrointest Endosc. 2009 Nov;70(5):874-80.
• Kochhar R, Poornachandra KS, Dutta U, Agrawal A, Singh K. Early endoscopic balloon dilation in caustic-induced gastric injury. Gastrointest Endosc. 2010 Apr;71(4):737-44

• D Thesis: Bone mineral density in Ulcerative Colitis
• DM Dissertation :To study the factors predicting the development of pseudocyst following acute pancreatitis
• Research project in Pool-ship: Effect of rifaximin on intestinal permeability and hepatic dysfunction in alcoholic liver disease
• Worked in a Reproductive and Child Health field project concerning evaluation of Auxiliary Nurse Midwife services in Maternal and Child Health care in 5 primary health units of Primary Health Center, Hoskote, Karnataka.

• Diagnostic and therapeutic – endoscopy
• Colonoscopy
• ERCP
• GI endoscopes
• Enteroescopes procedures
• Capsule endoscopy
• Fibroscan
• Manometry
• Impedance-pHmetry