| Post office | Sonauli B.O |
| Pin code | 841421 |
| Office type | B.O |
| Taluk / city | Chapra |
| District name | Saran |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | Saran |
| Region name | Muzaffarpur |
| Circle name | Bihar |
| Related sub office | Sarhwara S.O |
| Related head office | Marhowrah H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 841421 | Amardah B.O | Chapra | Saran | Bihar |
| 841421 | Rampur Atauli B.O | Chapra | Saran | Bihar |
| 841421 | Sarhwara S.O | Chapra | Saran | Bihar |
| 841421 | Semri B.O | Chapra | Saran | Bihar |
| 841421 | Sonauli B.O | Chapra | Saran | Bihar |
| 841421 | Sikati Bhikham B.O | Ishupur | Saran | Bihar |
| 841421 | Gamahria B.O | Jalalpur | Saran | Bihar |