“…Mega hydropower projects exert different effects on the surrounding and catchment areas. A comprehensive research instrument has been designed to predicate the Sustainability Livelihood Analysis (SLA) in order to gather enough data on rural livelihoods [ 14 ], which also include human, financial, social, natural, and physical capital assets [ 15 ]. In comparison to all the livelihood security vulnerabilities in the community in the Manchar Lake Basin, this research paper's findings indicate that human assets have been the most important asset among all other livelihood capital assets, and this provides a significant contribution to their livelihood [ 16 ].…”