PinCode: 847235, Rajnagar (Madhubani) Post Office, Madhubani, Madhubani, Bihar
| Post Office | Rajnagar (Madhubani) |
| Post Office Status | Sub Post Office (Delivery) |
| PinCode | 847235
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| Telephone | 06276-240522 |
| Town/Taluk | Madhubani |
| District | Madhubani |
| State | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| Postal Circle | Bihar |
List of Other Post Offices in Madhubani, Madhubani, Bihar