The project has stoked concerns about displacement and environmental impact downstream in India and Bangladesh.

Beijing has approved plans to dam a gorge in the Himalayas that is three times as deep as the Grand Canyon, despite concerns about the impact on Tibet and India.

Chinese foreign ministry's spokesperson, Mao Ning, on Friday, downplayed apprehensions over the country's plan to build the world’s largest dam on the Brahmaputra River in Tibet, saying that the mega project will not affect riparian states and its safety concerns have been addressed through decades of studies.