PinCode: 812004, Champanagar Post Office, Nathnagar, Bhagalpur, Bihar
| Post Office | Champanagar |
| Post Office Status | Sub Post Office (Delivery) |
| PinCode | 812004
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| Telephone | 0641-2501401 |
| Town/Taluk | Nathnagar |
| District | Bhagalpur |
| State | Bihar |
| Postal Division | Bhagalpur |
| Postal Region | Patna HQ |
| Postal Circle | Bihar |
List of Other Post Offices in Nathnagar, Bhagalpur, Bihar