• A faculty member at University of Kalyani, Deptt. of Zoology, since 1st April, 1975, retired as Professor of Zoology, on 30th September, 2013. Served as Emeritus Fellow of UGC from 21.4.2014 to 20.04.16

fish and aphid cytogenetics, antimutagenesis, toxicology and radiation biology, pharmaceutical studies etc. But his main interests are on - cancer cytogenetics, and testing anti-cancer and anti-diabetic potentials of various plant extracts mainly used as homeopathic mother tinctures. Also works on the efficacy of bioactive components isolated from the homeopathic mother tinctures or some other medicinal plant extracts. His other focus is pointed at increasing drug bioavailability by loading drugs with biodegradable nanoparticles. His group is the first to test and report nano-encapsulated homeopathic drugs to have enhanced anti-cancer potentials. He also led the first group who observed the ability of certain homeopathic mother tinctures to precipitate silver nanoparticles from silver nitrate solution. His team works on both in vivo and in vitro models. He works on molecular mechanism and pathways of action of potentized homeopathic drugs; his works on arsenic toxicity and homeopathic remediation highly acclaimed. His team produced nano insulin and studied its biological action.