Shillong, June 27: In the early hours of 24 June 2026, at around 06:30 hrs, a flash flood occurred in the residential colony of Panyor Lower Hydro Power Station in Keyi Panyor District, Arunachal Pradesh.
The incident was triggered by a highly localized and intense rainfall that commenced around 03:00 hrs over a small catchment in and around the project area.
The rainfall caused two small streams near the Administrative and Dam site colony to overflow, which washed away 24 nos. of residential buildings and also damaged several other buildings of the colony.
One person lost life, while four persons are reported missing. Search and rescue operations are being carried out by the District Administration, SDRF and Indian Airforce.
The State Government and NEEPCO jointly started the rescue and relief works immediately, including airlifting of injured persons.
One life was lost During the period of the incident, the Early Warning System (EWS) established by NEEPCO for rainfall and reservoir inflow forecasting for the project did not record any high rainfall or high discharge.
As per the preliminary assessment, the sequence of events shows that the incident was due to localised heavy rainfall and not because of any sudden increase in flow from upstream of the river.
The incident was in no way related to the operation of reservoir and Power House of the Project. No impact has been reported in the downstream areas of the project as a result of this incident.
