| Post Office | SONBARSA |
| Post Office Type | BRANCH OFFICE |
| District | MUZAFFARPUR |
| State | BIHAR |
| PIN Code | 843131 |
| Contact Address | Postmaster, Post Office SONBARSA (BRANCH OFFICE), MUZAFFARPUR, BIHAR (BR), India (IN), Pin Code: 843131 |
| Delivery Status | ✔ DELIVERY |
| Postal Taluk | SONBARSA |
| Postal Division | Muzaffarpur Division |
| Postal Region | Muzaffarpur Region |
| Postal Circle | BIHAR |
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