Doctor of Philosophy, North Bengal University, Siliguri, India, 1981.
Lecturer in chemistry Siliguri College, 1981, Rainganj University College, 1981-1982. Research associate North Bengal University, Siliguri, 1982-1984. International project leader National Institute Oceanography, Dona Paula, India, 1994-2000.
Convenor National Institute Oceanography, Dona Paula, 1996—1997. Visiting professor Goa (India) University, since 1992, University Poona, Pune, India, since 1992, Jawaharlal Nehru University, New Delhi, since 1996.
Member International Water Association (specialty group on hazard assessment and control of environmental contaminants, member core group 1989-2000).
Married Rama Sarker, April 24, 1983. 1 child, Subhodeep.