Mt Everest jee, when I first went to that place, I also thought that. But technically speaking , there is enough water to divert Melamchi river via tunnel. In otherwords, 170 MLD water is to be diverted whicj is less than 1/3 of the average water flowing at the Nakote of Helambu VDC. In first phase only 170 MLD water is extracted where another 170 MLD from Yangree and Laarke Rivers too in second aND THIRD phase. PS: MLD= million liter per day