The Union ministry of environment and forests (MoEF) has given the green light to resume the survey and investigation for three hydel power projects proposed on the Lachung river above Chungthang in North Sikkim.

The projects at Lachung (84MW), Bhimkyong (90MW) and Bop (97.5MW) were put on hold after the Centre for Inter-disciplinary Studies of Mountain and Hill Environment (CISMHE) submitted a