Serious construction incident — suspected methane release during tunnel excavation
A hydroelectric project in Sikkim that experienced a serious construction incident in 2026, suspected to be a methane release during tunnel excavation.
Location
Sikkim, India
2026 incident
Suspected methane release during tunnel excavation
Source: Regional geological risk reporting (2026)
Last verified Aug 8, 2026
Compiled by HEF from publicly reported sources. This entry reflects public reporting, not HEF's own field research or verification beyond the cited source.
