New Delhi, Aug. 13 -- The Union cabinet chaired by Prime Minister Narendra Modi has approved Rs.8146.21 crore for a 700 MW hydroelectric project, Tato-II, in Arunachal Pradesh's Shi Yomi district, a move that comes weeks after China began construction of what is set to be the world's largest river dam on the upper reaches of the Brahmaputra river. The project will be implemented by a joint venture between the North Eastern Electric Power Corporation Ltd, a central public-sector company, and the state government. It will take an estimated six years to build, a statement said. The Centre will give Rs.458.79 crore for constructing roads, bridges and transmission lines, apart from assistance of Rs.436.13 crore towards equity share of the state....