River Brahmaputra rises in Tibet , east of Mansarovar  . This river flows parallel to the Himalayas. On reaching Namcha Barwa it takes a U turn and here it is called Dihang and is joing by Dibang, Lohit and many other tributaries.Bramhaputra is marked by huge deposits of silt on its bed causing the river bed to rise. This also lets its channel shift frequently.
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Brahmaputra Rises from Tibet near Mansarover Lake. it is called tsangpoo in China. it flows parallels 2 Himalayas and on reaching namcha Barwa it takes U turn and enter India.
in India many tributaries join it like dhang and dbang. it frequently changes it's path.