NEW DELHI, (ANI) – India has strongly urged China to ensure that its upstream activities on the Brahmaputra River do not adversely impact downstream states, following reports of a mega dam project under construction in the Tibet region.

MEA also said that India has expressed its concern to China over the hydropower project on the Brahmaputra in Tibet, urging it to ensure the interests of the downstream states are not affected.

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India said on Friday (Jan 3) it had raised concerns with China about a planned mega hydropower dam construction upstream in Tibet, saying it will "monitor and take necessary measures to protect our interests".

India has urged the Chinese side to ensure that the downstream states of the Brahmaputra river are not harmed by activities in upstream areas, the Ministry of External Affairs said on Friday.

Sources said India was not informed by the Chinese side about the construction of the Brahmaputra dam project, which is the convention between the two countries, and learnt of it from media reports – the project is to cost an estimated $137 billion.

India has expressed concerns about China's planned mega dam on the Brahmaputra River, urging Beijing to consider downstream impacts. India is monitoring the situation and has called for transparency and consultation with downstream countries,

India's foreign ministry said on Friday that New Delhi has conveyed its concerns to Beijing about China's plan to build a hydropower dam in Tibet on the Yarlung Zangbo river which flows into India.

China announced that it is building the world's largest dam in Tibet - even larger than the Three Gorges Dam, which according to NASA, has slowed the Earth's rotation by 0.06 seconds. The new dam will be built on the Brahmaputra river.