Methane Trapped in Rock Suspected to Have Triggered NHPC Tunnel Disaster

Methane Trapped in Rock Suspected to Have Triggered NHPC Tunnel Disaster

Methane trapped in rock is suspected to have triggered the fatal blast in the NHPC tunnel disaster in Sikkim's Namchi. The incident occurred on July 20, 2026, claiming the lives of 15 workers. Five others remain trapped inside the tunnel. The investigation into the incident is ongoing, with experts suspecting that the methane trapped in the rock may have caused the explosion. The incident has raised concerns about the safety of construction sites in the region.