Chamoli Glacier incident: Tunnel worker narrates the horror

The ITBP said that the flash flood occurred in Rishi Ganga at around 10.45 a.m. due to a glacier falling into it and exponentially increasing the volume of water.

Due to this, the Rishi Ganga hydro project was completely devastated, it said.

"The BRO bridge on Joshimath highway was also completely washed away. There were six graziers with their livestock there and they were also swept away by the flash flood," the ITBP said.