Fifteen districts — Darbhanga, Khagaria, Sitamarhi, Katihar, Muzaffarpur, Patna, Bhagalpur, Samastipur, East Champaran, Madhubani, Nalanda, Saharsa, Madhepura, Purnia and Sheohar — are

worst-hit by floods, according to the flood hazard atlas on satellite data from 1998- 2019 by the National Remote Sensing Centre, the Indian Space Research Organisation, the National

Disaster Management Authority in New Delhi and the Government of Bihar.