Abstract: The mega hydropower project of (1000MW) Tehri dam has affected 125 villages directly or indirectly located in its vicinity. The 42 sq. kms reservoir resulting from 260 meters high dam formed in 2006 have caused severe environment and social impacts. 37 villages completely and 88 villages partially have faced problems of submergence, displacement, rehabilitation, livelihood. Since agriculture is the main stay of the surrounding villages, it has been severely affected due to submergence of fertile agricultural land (called Talon locally), reoccurring landslides, water availability problems etc.