The hydrological studies of the Bagmati river for Bagmati Action Plan (BAP) has been carried out for its catchment and tributaries from the upstream river point at Baghdwar to downstream point at Katuwal Daha where EI Maven has been involved as one the JV members of consulting firm. The hydrological studies of the project focuses on study of 17 tributaries of Bagmati river. The available hydrological data of Bagmati river basin within the study area