How did the flood begin in Bihar?

The flood in Bihar typically begins due to a combination of heavy monsoon rains and the overflow of rivers, particularly the Ganges and its tributaries. In recent years, factors such as deforestation, poor drainage systems, and climate change have exacerbated the situation, leading to more frequent and severe flooding. Additionally, the melting of snow in the Himalayas during the summer months contributes to rising water levels in the rivers, further increasing the risk of floods in the region.