Bachelor of Science, Calcutta University, 1980. Master of Science, Calcutta University, 1983. Doctor of Philosophy, Calcutta University, 1990.
Research associate Calcutta University, 1992. Assistant executive secretary Indian Science Congress Association, Calcutta, since 1993. Guest lecturer A.J.C. Bose College, Calcutta, since 1992, Calcutta University, 1993-2000.
Secretary Choturangan, Calcutta, since 1984. Fellow Indian Association Biological Science, National Environment Science Academy, International College Nutrition, Academy Environmental Biology.
Asim Krishna and Guari (Mitra) De. Married Minakshi De, December 12, 1990. 1 child, Aritra.