| Post office | Chainwa S.O |
| Pin code | 841204 |
| Office type | S.O |
| Taluk / city | Ekma |
| District name | Saran |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | Saran |
| Region name | Muzaffarpur |
| Circle name | Bihar |
| Related sub office | NA |
| Related head office | Chapra H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 841204 | Asahani B.O | Chapra | Saran | Bihar |
| 841204 | Atarsan B.O | Chapra | Saran | Bihar |
| 841204 | Chanchaura B.O | Chapra | Saran | Bihar |
| 841204 | Dohar B.O | Chapra | Saran | Bihar |
| 841204 | Eksar B.O | Chapra | Saran | Bihar |
| 841204 | Rasualpur Chatti B.O | Chapra | Saran | Bihar |
| 841204 | Chainwa S.O | Ekma | Saran | Bihar |