He obtained his M.D. (Preventive & Social Medicine) from India and Ph.D. (Epidemiology) from the Johns Hopkins University, Baltimore, USA. He has been awarded FAMS by the National Academy of Medical Science for his outstanding contribution in the field of public health. He is a fellow of Indian Association of Preventive & Social Medicine, and a long-term member of the International Epidemiological Association. He has published several research papers and reports. He has been associated in various capacities with several national and international research and academic organizations. He has chaired several scientific and other committees and served as temporary advisor to WHO Scientific Working Group on Research Information Management.