M.Sc. (Calcutta University) in zoology, Ph.D. in ecology. Post doc research in ecological economics (University of California - Berkeley). Interests in: mathematical ecology, anthropology, conservation biology, agroecology, ecoforestry.

Fulbright Fellow (2009) in University of California to visit and work on America's indigenous societies.

Current occupation: Freelance research in conservation biology and ecology; Founder of Vrihi (the first non-govt. indigenous rice seed bank for folk farmers)