A collision between two loco trains occurred late Tuesday evening inside a tunnel at the under-construction Vishnugad-Pipalkoti Hydro Electric Project in Uttarakhand's Chamoli district. Approximately 60 workers and officials were injured, with some reports indicating around 50 injured. All 109 individuals on board have been rescued, and the injured are reported to be in stable condition, receiving treatment at local hospitals. Preliminary investigations suggest a technical malfunction or fault as the cause, and a detailed inquiry is underway.