Synopsis The Study of the structure and Dynamics of the Environmental Changes in Prehistoric India in which living being existed is a recent discipline of extensive research. Even the modern societies function within an environment t to which they have adapted their culture and which they exploit to the limits of their day to day requirements and technological competence. Ecological studies provide evidence on the environmental background to culture which helps in explaining facets of development. The recent excavation s in Mohan-jo-daro and Harappan as well as other religious in India are a case in point. No doubt, the bedrocks of Pre-historic cultures and the recent technological developments are helpful in determining g the Environmental changes in Prehistoric India. Various scientific studies on this subject have been made by scholars in the past. Indian have begun Taking serious interest in knowing the past environment, whether if earliest prehistoric or later early historic age. This publication also analysis of the physical and biological data available on prehistoric stratigraphy of India and Pakistan to reconstruct its ecology, extending from the future research in the field of Prehistoric ecology.