The foundation of HPCIDBC lies in the joint initiation of citizen and government to make Bagmati a pollution free river. A Committee for Implementation & Monitoring of Environmental Improvement in Pasupathi Area was thus set up by Nepal Government on Chaitra 28, 2051. The committee was modified to High Powered Committee for Implementation & Monitoring of the Bagmati Area Sewerage Construction/Rehabilitation Project (BASP) on Mangshir 6, 2052 with a vision and mandate to cover wider scope of area and activities.