Prof. N Sadhu got M.Sc in Physiology from University of Calcutta. His field of expertise are General product ergonomics & ergonomics. Major Sponsored and Consultancy projects are . National Ergonomic data Bank - Anthropometry, . World bank sponsored project on design education, . Design of Carbogen breathing apparatus (ARDB), . Prototype of Carbogen Breathing apparatus (DIPAS/DRDO).