The Yarlung Tsangpo is the Tibetan name for the Brahmaputra River. It originates near Mount Kailash in Tibet, flows through Arunachal Pradesh (where it's called Siang/Dihang), then Assam (Brahmaputra), and finally Bangladesh (Jamuna) before merging with the Ganges. The Chenab, Sutlej, and Indus are separate rivers in the Indus River System.