Based on my forty years of research work in the field of wildlife conservation and management. I have included all the information year wise and the research work done in different National Parks and wildlife sanctuaries. This includes my PhD on Lion study in Gir forest than Snow leopard survey in Trans Himalayas Indo - US joint survey project. Later started my research work on Reintroduced Rhinoceros in Dudhwa National Park Uttar Pradesh and reported presence of Swamp deer in Jhilmil CR .