His main interest is in femtosecond dynamics in nano-confined systems that include biological assemblies.
He was the director and chair professor of Indian Association for the Cultivation of Science (IACS), Kolkata, the oldest centre for scientific research in Asia.
[citation needed] He is a fellow of all of the national science academies of India and a senior editor of The Journal of Physical Chemistry.
He did his doctoral research under the supervision of Professor Mihir Chowdhury, an eminent scientist in the field of molecular spectroscopy and photochemistry at IACS (1984).
he was a visiting professor at Department of Chemistry, Indian Institute of Science Education and Research, Bhopal [2] He was diagnosed with colorectal cancer and died on 10 November 2022 at Tata Medical Centre, Kolkata, at 68 years old, due to the disease.