Which is the largest hydroelectric power project over Teesta river in India ........

Explanation:

Teesta -V dam, the largest project so far, was completed in 2007 on Teesta in Dikchu, East Sikkim district. Its height is 87 metres (285 ft) and its length is 176 metres (577 ft). It generates 510 MW hydroelectric power and assists flood control. Rangeet III HEP has capacity of 60 MW. The other three completed projects are significantly smaller and minor—Lower Lagyap, Upper Rongni Chhu and Mayang Chhu projects.