The Rapti River is a significant river in Nepal, flowing through the western part of the country. It originates from the Siwalik Hills and travels approximately 200 kilometers before merging with the Gandak River in India. The river is an essential water source for local communities and supports agriculture in the region. The Rapti River is also known for its rich biodiversity, including various fish species and wildlife along its banks. It flows through the Chitwan National Park, a UNESCO World Heritage Site, which is home to endangered species like the Bengal tiger and the one-horned rhinoceros.