Buddhadeb completed his Ph. D. in Social Science, taught at the two greatest institutes of national importance in India, done post-doctoral in Japan, worked in joint projects in USA, published about 100 research papers in peer-reviewed journals, written extensively in newspapers and magazines on popular topics, attended and presented more than 100 conference papers, done many national and international (UNO) empirical projects. His general writings on empirical economics, history, philosophy, Yoga, spiritualism, politics, and psychology are available on the Internet. His students are spread across the world. He is a dedicated Yoga and Meditation practitioner for more than five decades since childhood; his other hobbies are traveling, angling, gardening, music, social work, organic farming, etc.