business ๐ฅ NHPC knew about Sikkim tunnel risks before July blast
A deadly blast occurred in a tunnel at Sikkimโs Namchi district on July 20 while constructing the 500-MW Teesta VI hydropower project. NHPC, the public enterprise, was aware of methane presence on site since at least January ๐ฌ. Documents show the company lacked adequate methane management infrastructure in July. Tenders for gas monitoring were floated just ten days before the accident. Rescue efforts concluded on the third day, but there were no survivors.