Agro-Climatic Zone of Bihar

Bihar
	North East Alluvial Zone
		Araria
		Katihar
		Khagaria
		Kishanganj
		Madhepura
		Purina
		Saharsa
		Supaul
	North West Alluvial Plain Zone
		Begusarai
		Champaran
		Darbhanga
		Gopalganj
		Madhubani
		Muzaffarpur
		Samastipur
		Saran
		Sheohar
		Sitamarhi
		Siwan
		Vaishali
	South Bihar Alluvial Zone (a)
		Banka
		Bhagalpur
		Jamui
		Lakhisarai
		Munger
		Sheikhpura
	South Bihar Alluvial Zone (b)
		Arwal
		Aurangabad
		Bhabhua
		Bhojpur
		Buxar
		Gaya
		Jehanabad
		Nalanda
		Nawada
		Patna
		Rohtas