Bachelor of Science with honors, University Calcutta, India, 1954. Master of Science, University Calcutta, India, 1956. Doctor of Philosophy in Biochemistry, Boston University, 1965.
With School Medicine, Boston University, 1963-1965, 79-; director obstetrics-gynecology endocrinology laboratory Medical Center, Boston University, since 1979; professor biochemistry obstetrics-gynecology endocrinology School Medicine, Boston University, since 1986; assistant professor, Chicago Medical School, 1965-1969; assistant director, Michael Reese Hospital & Medical Center, Chicago, 1965-1969. Board directors Bio-Laboratory, Milford, Massachusetts.
Married Aparna Chattoraj, July 31, 1961.