Its upper reaches fall in the territory of Bhutan. It enters Indian territory near Phuentsholling after travelling about 70 km in China and 78 km in Bhutan. It then flows through the districts of jalpaiguri and Cooech Behar in West Bengal and joins Brahmaputra in Bangladesh.

In which countries Brahmaputra river flows?

The Brahmaputra (/ˌbrɑːməˈpuːtrə/), also known as the Yarlung Tsangpo in Tibet, the Siang/Dihang River in Arunachal Pradesh, and Luit, Dilao in Assam, is a trans-boundary river which flows through Tibet, India, and Bangladesh.

What are the four rivers that flow through Bhutan?

Bhutan has four major river systems: the Drangme Chhu; the Puna Tsang Chhu, also called the Sankosh; the Wang Chhu; and the Amo Chhu.