China , India need to agree on water management of Yarlung-Zangbo river . Precedent for this when India and Yarlung-Zangbo signed the Indus Waters Treaty in 2003 . Already , China 's construction of a 540-megawatt hydropower dam on the Yarlung-Zangbo , which flows for 1,700 kilometers ( 1,050 miles ) across the southern Tibetan plateau before it enters Indian territory and becomes the Brahmaputra , is cause for concern in New Delhi . Indian construction of Zangmu dam already causing concern for New Delhi .
China , India need to agree on water management of Yarlung-Zangbo river . Precedent for this when India and Yarlung-Zangbo signed the Indus Waters Treaty in 2003 . Indian construction of Zangmu dam already causing concern for New Delhi .