This project is a part of the 23.65 km long Headrace tunnel, which will carry the water from dam to the project being developed by the National Hydroelectric Power Corporation (NHPC), a release issued here said.
"HCC has completed the first tunnel using the tunnel boring machine," it said.
The 330 MW Kishanganga hydro project is located on river Kishanganga, a tributary of river Jhelum, in Bandipore district of Jammu & Kashmir. HCC and the UK-based Halcrow Group are jointly executing the project worth Rs 2,726.49 crore.
"Using tunnel boring machine in young Himalayan mountains poses various geological and technical challenges. But we took this challenge and with meticulous planning and precise execution managed to overcome all hurdles to complete the tunnel well ahead of time," HCC Project Manager A I Benny said.
The release further said the remaining 8.9 km tunnel is being constructed by conventional drill and blast method.