The project proposal aims to compile and create the most likely hydrologic profile of selected rivers in Western Himalayas in pre-large scaledevelopment period; to compile data, reports, results, and other relevant information pertaining to environmental flow assessment in rivers ofIndia; and to apply and modify the existing suitable Environmental Flow Assessment (EFA) methods for a Himalayan River with limitedecosystem data. The study will contribute to development of tools for EFA in Indian context and particularly to the Himalayan region wherein alarge number of hydropower projects are in different stages of planning, construction and operation. The expected outcome and deliverable ofthe project is a methodology to assess environmental flows of Himalayan rivers with the existing knowledge base.