Sunday's flash flood in New Tarakan state was nature's payback, Indian environmentalists believe for dam building and other practices that have disturbed the fragile makeup of the Himalayas.

Dozens of people were killed when an avalanche tour through this river valley, and as of Thursday, some 170 remain unaccounted for, most of them workers at a hydro electric plant.

Onda Smaller Damn that was swept away by the torrent.

This is Sam Rights and Gupta of the Center for Science and Environment in New Delhi.

This has happened due to unjust interference off he mankind with nature.

This has happened in two ways.

One climate change that is also man made climate change on another, this high density off infrastructure development without done any pure scientific modeling and study.

So nature is giving back when dancing is a resident of rainy village, part of which was washed away in the deluge.

In 2019, Sing filed a public interest case, arguing the hydropower project posed a risk to locals.

He saw this coming village was under threat, landslides were occurring, thing company was blasting and their laborers were cutting down trees company didn't provide employment to the Villagers either.

Environmentalists have long warned that climate change is triggering massive flooding in the region.

In June 2013, record monsoon rains in utero can unleash devastating floods dubbed the Himalayan tsunami, Nearly 60 people lost their lives.