Bihar Flood Alert: Gandak, Kosi and Ganga Rise as Nepal Rains Push Rivers Past Danger Marks

Flood fears are rising across Bihar as persistent rain in Nepal and the wider region sends more water into river systems that flow downstream into the state. Several gauges on the Gandak, Kosi, Burhi Gandak and the Ganga are at or above danger or warning levels, putting low-lying areas and vulnerable embankments under close watch.

Rivers under pressure

The latest flood-monitoring data shows the Gandak above the danger level at Dumariaghat in Gopalganj. The Kosi is also above danger levels at key stations including Birpur and Kursela, while multiple Ganga stations in Bihar have crossed their danger marks.

The pressure is not confined to one river basin. The Burhi Gandak is above danger level at Khagaria, while rising water on the Ganga has triggered heightened concern in the Patna and Bhagalpur stretches.

Why Nepal matters to Bihar

Many of Bihar’s major rivers are closely linked to Himalayan catchments in Nepal. Heavy rainfall upstream can rapidly increase downstream discharge, especially when already swollen rivers receive fresh inflows.

The current concern comes after the recent Himalayan disaster in Nepal and Tibet, which damaged mountain river systems and infrastructure. Continued rain in Nepal is now adding pressure to rivers flowing south towards the plains.

Administration on alert

Authorities are monitoring river levels and vulnerable locations, while disaster-response and district teams remain on alert. Residents in low-lying and flood-prone areas may face the greatest risk if upstream inflows remain high or rainfall intensifies.

What happens next

The immediate outlook depends on rainfall in the Himalayan catchments, water released through barrages and the ability of river systems to carry the additional discharge. Bihar’s flood situation could change quickly, making continuous monitoring crucial over the coming days.

This report has been independently rewritten and updated from the supplied source material and current flood-monitoring reports.