NHPC knew of risks at Sikkim tunnel before deadly July blast, documents show
[ad_1] In the afternoon of July 20, a blast resounded through a tunnel being constructed in Sikkimâs Namchi district. Workers said that the force of the blast threw them around two metres, and that almost immediately, they could smell gas. The explosion took place in the head-race tunnel of the 500-MW Teesta VI hydropower project … Read more