China is building the world's largest hydropower dam on the Yarlung Tsangpo river, which starts in the Himalayas. However, India and Bangladesh have both expressed concerns over the dam's potential impact.

Chinese authorities have begun constructing what will be the world's largest hydropower dam in Tibetan territory, in a project that has sparked concerns from India and Bangladesh. Chinese Premier Li Qiang presided over a ceremony marking the start of construction on the Yarlung Tsangpo river on Saturday, according to local media.

India could fast-track a multipurpose dam in Arunachal Pradesh to act as a buffer against sudden changes in the flows of the Siang and Brahmaputra rivers