The main rivers of Bhutan- Torsa, Wong, Sankosh and Manas - all join which river in India?

Question

China has blocked a tributary as part of the construction of its "most expensive" hydro-power project that could cause concern in India as it may impact water flows into the lower riparian countries.

What is the name of tributary and main river?

Answer 1

Brahmaputra River

Torsa enters into India in the state of West Bengal and joins Brahmaputra in Bangla Desh
Wong River is also known as Raidak River which joins Brahmaputra in Bangla Desh before flowing through the state of WestBengal
Sankosh joins Brahmaputra at the Assam
Manas River joins the Brahmaputra at the state of Assam in India

Answer 2

Brahmaputra River

Manas River flows in Bhutan and is the largest river system of Bhutan. Three other river systems of Bhutan are Torsa, Wong, Sankosh. It is met by three other major streams before it again debouches into India in western Assam.

After flowing a total of 376 kilometers, it meets Brahmaputra River at Jogighopa. Its river valley is home to Royal Manas National Park in Bhutan and the contiguous Manas Wildlife Sanctuary of India which is a Project Tiger Reserve, an Elephant Reserve and a Biosphere Reserve as well as a UNESCO World Heritage Site.