Which river forms the international boundary between India and Nepal?

ANS:A - Mahakali River

The Koshi River forms part of the international boundary between India and Nepal. Originating in the Tibetan Plateau, the Koshi River flows southeastward through Nepal before entering the Indian state of Bihar. It is one of the major rivers in the region, contributing significantly to the Ganges Basin. The river has historically played a crucial role in the geography and hydrology of the region, and its basin is vital for the agriculture and livelihoods of the people in both countries. The Koshi River, along with its tributaries, serves as a natural demarcation line between India and Nepal in certain areas, reflecting the historical and geographical ties that define the border between the two nations. This river's significance extends beyond its role in boundary formation, impacting the regional ecosystem, water resources, and cross-border cooperation between India and Nepal.