The Ghaghara flows into the Ganga downstream in Bihar in one of the most flood-prone regions and most densely-populated regions of the world. Floods in the Ganga basin between 2000 and 2014 affected about 93 million people. According to a 2018 report from the International Water Management Institute, there were 326 extreme flood events in the Ganga basin between 1980 to 2015 resulting in 67,000 casualties. Of these 212 floods were in India, 74 in Bangladesh and 40 in Nepal. China accounts for 4% of the basin, but there is almost no information about floods there.