Analysts warn huge hydroelectric project in Tibet could risk geological disasters and irk New Delhi as neighbours try to ease tensions Beijing's approval of a controversial mega dam in the lower reaches of the Yarlung Tsangpo River,

China has approved the construction of the world's largest hydropower dam on the eastern rim of the Tibetan plateau despite protests over its ecological impact and concerns it could affect millions of people downstream in India and Bangladesh.

China is pressing ahead with plans to construct a mega-dam near its contested border with India, a colossal undertaking that could generate three times as much power as the Three Gorges Dam.