China plans 1000-km tunnel to divert water from Brahmaputra 
Chinese engineers are reportedly awaiting approval to build a 1,000-km tunnel, the world's longest, to divert 10-15 billion tons of water from Brahmaputra river in Tibet before it enters Arunachal Pradesh. This comes even as India expressed its concerns over China building various dams on the Brahmaputra river, which is called Yarlung Tsangpo in China. 