Intermediate of Science, Patna University, India, 1980. Bachelor of Science with honors, Patna University, India, 1983. Master of Science in Botany, Patna University, India, 1986.
Doctor of Philosophy, North Eastern Hill University, India, 1991.
Junior research fellow, Indian Government Department Environment, 1986-1988; senior research fellow, Indian Government Department Environment, 1988-1991; lecturer in botany, Gauhati U., Guwahati, Assam., India, since 1991. Counsellor tourism studies program Indira Gandhi National Open U.
Member of Executive Committee Adarsha Hindi School Managing Committee, Guwahati, 1994-1995. Member Indian Society for Soil Biology and Ecology (life), Botanical Society Assam, Mycorrhiza Network, Rotary (editor R.C. Gauhati West chapter 1995-1996,secretary R.C. Gauhati West 1996-1997, president, since 1997).
Married Sushma Kumari, February 19, 1995.