Dr. S. S. Tiwary obtained his MA, M Phil and Ph D degree from University of Delhi. He Is an academic and scholar in his own right and a prolific writer having knowledge and Interest of various disciplines. He worked for different renowned publishing; houses on various capacity and at present he is working as an editor -with a reputed and renowned publishing house. Dr.S. Kumar, MSc. (Anthrop.), MA (Soc). Ph D. has had brilliant academic record. A keen researcher, he has more than seven years experience in tribal research. Besides a brief stint of teaching at college level, he is currently engaged in social activities amongst different tribal groups in India. As a prolific writer his recent publication viz.Encyclopedia of South-Asian Tribes (10 vols) was widely acclaimed