Dr Sujit Kumar Bhattacharya was born on 15 January 1950 and obtained his MD (Internal Medicine) degree in 1979 from Calcutta University. He joined the National Institute of Cholera and Enteric Diseases, Kolkata and became Director of the institute in 1994. He was then elevated to Additional Director General of the Indian Council of Medical Research, New Delhi. He joined the South East Asia Regional Office, New Delhi in 2009 and retired in 2011. He also served as Director of the Rajendra Medical Research Institute of Medical Sciences, Patna, and Virology Research Centre, Kolkata. He is a fellow of three prestigious academies in India. He served in the Scientific Advisory Group of Tropical Diseases Research (TDR), Geneva. He attended many national and international conferences. He has to his credit about 500 publications. He received the Ranbaxy Science Foundation award for excellence in research in clinical science. He is now involved in clinical medical patient care.