Giant Fish Weighing Up to 100 Kg Swept Into Bihar From Nepal Floods, Fishermen Left Stunned

The impact of the devastating flash floods and landslides in Nepal is now being felt in Bihar, where an unusual sight has caught the attention of fishermen and locals. Several giant fish have reportedly been swept into the Gandak River by the powerful floodwaters flowing down from Nepal.

The disaster began after severe flooding and landslides hit Nepal's Rasuwa district on August 26, 2026. As floodwaters moved through the river system, they carried aquatic life downstream, with unusually large fish reportedly reaching several parts of Bihar.

Fishermen in areas including Mangalpur Ghat in Gopalganj, Valmikinagar, Bagaha and surrounding regions have reportedly caught large fish in their nets.

Fish Weighing Up to 100 Kg

Videos circulating on social media show fishermen standing beside unusually large fish caught from the river.

According to reports, some of the fish are said to weigh up to 100 kg, while several others reportedly weigh 5 kg or more.

The fish reportedly caught by fishermen include species such as Goonch catfish, Baghar, Grass Carp, Wallago and Rohu.

However, not every claim circulating on social media has been independently verified. Therefore, the reported weights and species should be treated cautiously until officially confirmed.

How Did the Fish Reach Bihar From Nepal?

The biggest question is how such large fish travelled all the way from Nepal into Bihar.

According to the report, floodwaters from Nepal's Bhotekoshi River flowed into the Trishuli River and eventually became part of the Narayani river system.

The river system is connected downstream to the Gandak, allowing the powerful floodwaters to carry fish and other aquatic life towards Bihar.

The unusually strong current may have displaced fish from their normal habitats and transported them considerable distances downstream.

A Surprising Opportunity for Fishermen

While the floods have caused destruction and disruption in Nepal, the arrival of giant fish has become an unexpected development for some fishermen living along the Gandak.

Fishermen in several areas were reportedly surprised when unusually large fish began appearing in their nets. The sight has generated considerable curiosity among local residents.

However, the phenomenon is directly linked to the abnormal flood conditions and should not necessarily be viewed as a normal increase in fish populations.

Giant Fish Videos Go Viral

Videos of the giant fish are spreading rapidly across social media platforms. In several clips, fishermen can be seen displaying large fish caught near the riverbanks.

The videos have triggered a range of reactions. Some social media users have identified the fish as Goonch catfish, while others have raised questions about their exact species and size.

Some users have also urged people to exercise caution before consuming unfamiliar fish species.

Floodwaters Can Change River Ecosystems

The unusual movement of giant fish also highlights how extreme flooding can affect river ecosystems.

Powerful flood currents can alter river habitats and force aquatic animals to move away from their usual locations. Fish can sometimes be carried considerable distances when rivers experience exceptionally strong flows.

The incident has therefore attracted attention not only because of the remarkable size of the fish, but also because it shows the far-reaching effects of extreme weather and flooding on river ecosystems.

While Nepal continues to deal with the consequences of devastating floods and landslides, the arrival of giant fish in Bihar's Gandak River has left fishermen and residents astonished.