According to an official from the state disaster management unit, 28 districts have been affected by floods in north and central Bihar this season, including Patna. The other affected districts are East and West Champaran, Supaul, Araria, Madhepura, Sheohar, Saharsa, Kishanganj, Katihar, Purnea, Vaishali, Gopalganj, Siwan and Saran.