The Koshi River, often called the Sorrow of Bihar, has unleashed devastating floods in eastern Nepal after breaching its embankments at three critical points in Sunsari and Saptari districts early this morning. Water levels surged to dangerous heights following 72 hours of continuous heavy rainfall in the upstream catchment areas of the Sapta Koshi basin. The breach has sent torrents of water into low-lying agricultural lands, submerging at least 35 villages and cutting off road access to several municipal wards.

District authorities estimate that over 12,000 people have been displaced, with many stranded on rooftops and elevated structures awaiting rescue. The Nepal Army has deployed 15 inflatable rescue boats and two MI-17 helicopters for aerial evacuation of critically stranded families. The National Disaster Risk Reduction and Management Authority has classified the situation as a Level 3 emergency, triggering federal-level response coordination. At least four deaths by drowning have been confirmed, with several people still reported missing.

The Koshi Barrage management team has opened all 56 sluice gates to maximum capacity to manage the unprecedented water flow, a measure that has raised alarm downstream in Indian border areas. Nepal's Department of Hydrology and Meteorology has issued a red alert for all districts along the Koshi basin, warning that water levels could rise further as upstream tributaries continue to swell. Livestock losses are expected to be severe, with initial estimates suggesting thousands of cattle swept away.

Relief camps have been established at schools and government buildings on higher ground in Inaruwa and Rajbiraj. The Home Ministry has directed all provincial and local agencies to prioritize evacuation over property salvage. International humanitarian agencies, including the IFRC and UNDP, have activated their Nepal emergency response mechanisms. Meteorological forecasts indicate that rain intensity may decrease within the next 24 hours, but officials warn that the embankment breach will continue to channel floodwaters into populated areas until emergency repairs can be completed.