The Melamchi River is a significant river located in the Sindhupalchowk District of Nepal. It originates from the Langtang National Park and flows through the Melamchi Valley before merging with the Indrawati River. The river is known for its scenic beauty and is an important water source for local communities. The Melamchi River is also notable for the Melamchi Water Supply Project, which aims to provide drinking water to the densely populated areas of Kathmandu. This project has been crucial in addressing water scarcity issues in the capital, benefiting thousands of residents.