| Post office | Narwan B.O |
| Pin code | 841223 |
| Office type | B.O |
| Taluk / city | Manjhi |
| District name | Saran |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | Saran |
| Region name | Muzaffarpur |
| Circle name | Bihar |
| Related sub office | Mohamadpur S.O |
| Related head office | Chapra H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 841223 | Mohamadpur S.O | Chapra | Saran | Bihar |
| 841223 | Narwan B.O | Manjhi | Saran | Bihar |
| 841223 | Baghauna B.O | Siswan | Siwan | Bihar |