Chamoli: ITBP personnel dig to open Tapovan Tunnel which is completely blocked, after a glacier broke off in Joshimath in Uttarakhand’s Chamoli district causing a massive flood in the Dhauli Ganga river, Sunday, Feb. 7, 2021. More than 150 labourers working at the Rishi Ganga power project may have been directly affected. (PTI Photo)