Bachelor of Science, St. Xavier's College, 1958. Master of Science, University Calcutta, India, 1960. Doctor of Philosophy, University Calcutta, India, 1965.
Senior research officer, U. Calcutta, 1964-1965; research associate in biochemistry, University of Illinois, Urbana, 1965-1971; member of staff, General Electric Research and Development Center, Schenectady, 1971-1979; professor department microbiology, University of Illinois Medical Center, 1979-1989; distinguished professor, since 1989.
Member American Society Microbiology, Society Industrial Microbiology, American Society Biological Chemists.
Married Krishna Chakraverty, May 26, 1965. Children: Kaberi, Asit.