Master of Science in Physics, Roorkee (India) U., 1969; Doctor of Philosophy in Science, Jadavpur U., Calcutta, India, 1974.
Visiting scientist in physics, Syracuse (New York) U., 1981-1983; research associate, Syracuse (New York) U., 1983-1986; postdoctoral fellow in radiation therapy, Thomas Jefferson U., Philadelphia, 1986-1988; staff scientist II, Lawrence Berkeley (California) Laboratory, 1988-1993; senior physicist, University of California Cancer Center, Davis, 1993-1994; senior physicist, University of California, San Francisco, since 1994. Lecturer in field.
Member American Association Physicists in Medicine (travel grantee 1986, 91), Radiation Research Society, Sigma Xi.
Married Pratibha Kaul, June 2, 1974;children: Manish, Naveen.