PinCode: 847203, Sonpur Post Office, Darbhanga, Darbhanga, Bihar
| Post Office | Sonpur |
| Post Office Status | Branch Post Office (Delivery) |
| PinCode | 847203
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| Telephone | |
| Town/Taluk | Darbhanga |
| District | Darbhanga |
| State | Bihar |
| Postal Division | Darbhanga |
| Postal Region | Muzaffarpur |
| Postal Circle | Bihar |
List of Other Post Offices in Darbhanga, Darbhanga, Bihar