Tsang Po and Jamuna are other names of which river?

The correct answer is Brahmaputra.

The Brahmaputra is a major transboundary river flowing through Tibet (China), India, and Bangladesh. Due to its passage through different countries and regions, it is known by several local names along its course:
1. Yarlung Tsangpo (Tsang Po): In Tibet, the river originates from the Angsi Glacier near Mount Kailash and is known as the Tsang Po (or Yarlung Tsangpo).
2. Brahmaputra: As it enters India through Arunachal Pradesh (where it is initially called the Siang or Dihang), it flows into the Assam Valley and is called the Brahmaputra.
3. Jamuna: Upon entering Bangladesh, the river flows south and is known as the Jamuna River before merging with the Ganges (known as the Padma in Bangladesh) and ultimately emptying into the Bay of Bengal.