Director of Center for Complementary and Integrative Health. He is an elected Fellow of National Academy of Sciences and Medical Sciences. He has made original contributions to evidence-based Ayurveda, ethnopharmacology, drug discovery, development and integrative medicine. He is the founder Editor-in-Chief of Journal of Ayurveda and Integrative Medicine published by Elsevier. He is recipient of many awards and orations including Sir Ram Nath Chopra Oration, P K Devi Oration, Waldeimar Haffkine Oration among many other.