Dr. Rajesh Kumar Singh is currently working as a Research Associate in Banaras Hindu University. His research focus is pharmacognosy, reverse pharmacology, drug design and discovery, extraction & isolation of natural products, cell culture, and handling of different rodents. He has published several research articles in reputable journals over the course of his career. At present, he is involved in developing an Indian origin cell line and screening drugs of natural origin for the treatment of gallbladder cancer.