Heavy rainfall across Nepal's catchment and Terai regions has triggered a sharp rise in river levels across north Bihar, pushing floodwaters into low-lying areas of West Champaran, Sitamarhi, and East Champaran as of 15 July. Authorities have placed multiple districts on high alert as the Gandak, Bagmati, and Dudhaura rivers continue to swell, threatening further inundation.

Scale of Inundation

The crisis escalated after approximately 2.32 lakh cusecs of water were discharged from the Valmikinagar Gandak Barrage, triggering rapid flooding in the Piprasi and Madhubani blocks of the Bagaha subdivision. The worst-affected panchayats — Sisai and Chiurahi — have seen more than 300 houses submerged. The riverine Diara region has been completely inundated, severing transportation links to several villages.

Dozens of families fled their homes on Wednesday morning as water levels rose rapidly, relocating to schools and elevated stretches along the Dhanha–Ratwal main road. Many residents said they had little time to salvage food, clothing, livestock, or essential belongings before floodwaters entered their homes.

Relief Delays and Residents' Allegations

Villagers in the affected areas have alleged that administrative officials did not reach them promptly despite repeated reports of flooding, and that relief operations began late. They have demanded immediate distribution of food, drinking water, medicines, temporary shelters, and other emergency supplies.

Responding to the allegations, Madhubani Block Circle Officer Nandlal Ram said block officials were dispatched as soon as information about the flooding was received, and that the situation is being assessed while necessary assistance is being extended to affected families.

Bagmati River Threat to Sitamarhi and Sheohar

The Bagmati River has also recorded a significant rise due to continuous rainfall in Nepal, and is currently flowing above the danger mark at several points, heightening the flood threat in Sitamarhi and Sheohar districts. Sitamarhi District Magistrate Richie Pandey has directed all departments to remain on alert and has activated flood preparedness protocols.

Officials from the Water Resources Department have been instructed to maintain round-the-clock embankment monitoring. The Sadar Sub-Divisional Officer (SDO) has been inspecting embankments at Bairgania, Suppi, Tilak Tajpur, and Belsand for signs of seepage or structural weakness.

Public Warnings and Emergency Preparedness

Authorities have launched a loudspeaker awareness drive in vulnerable villages, urging residents to stay away from riverbanks and avoid unnecessary movement in flood-prone zones. Officials have specifically appealed to parents not to allow children near rivers, canals, or embankments during the monsoon, warning that strong currents can prove fatal even in seemingly calm stretches of water.

Emergency response teams have been kept on standby. With rainfall continuing in Nepal and upstream regions, officials warn the situation could deteriorate further if river discharge increases — and the coming days will be critical for communities already on the edge.