India has voiced concern about Beijing’s plan to build a dam in Tibet that is three times larger than China’s Three Gorges, currently the world’s largest hydropower facility.

Concerns swirling over China's recently approved plan to construct the world's largest hydroelectric dam in southern Tibet. It will be built on Tibet's longest river, the Yarlung Tsangpo, and could cost as much as US$137 billion — more than any other single infrastructure bill on the planet.