Dena Bank is in Follwing Districts in Bihar State

Begusarai
Bhagalpur
Bhavnagar
Bhojpur
Buxar
Darbhanga
Gaya
Jehanabad
Kishanganj
Madhuban
Madhubani
Muzaffarpur
Nalanda
Paschimi Champaran
Patna
Purbi Champaran
Purnia
Rahika
Rohtas
Saharsa
Samastipur
Saran
Siwan
Vaishali