| Division | Headquarter | Districts |
| Patna | Patna | Patna ,Bhojpur, Bhabhua, Rohtas, Buxar, Nalanda |
| Magadh | Gaya | Gaya, Jehanabad, Arwal, Aurangabad, Nawada. |
| Tirhut | Muzaffarpur | Muzaffarpur, East Champaran, West Champaran, Sitamarhi, Vaishali, Sheohar |
| Saran | Chapara | Saran, Siwan, Gopalganj |
| Bhagalpur | Bhagalpur | Bhagalpur, Banka |
| Monghyr | Monghyr | Monghyr, Begusarai, Khagaria, Lakhisarai, Sheikhpura, Jamui |
| Purnea | Purnea | Purnea, Katihar, Araria, Kishanganj |
| Darbhanga | Darbhanga | Darbhanga, Madhubani, Samastipur |
| Koshi | Saharsa | Saharsa, Madhepura, Supaul |
Bihar became the first state in India to have separate web page for every city and village in the state on its website www.brandbihar.com (Now www.brandbharat.com)
See the record in Limca Book of Records 2012 on Page No. 217