| Post office | Sarwan B.O |
| Pin code | 804402 |
| Office type | B.O |
| Taluk / city | Kaler |
| District name | Gaya |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | Gaya |
| Region name | Patna HQ |
| Circle name | Bihar |
| Related sub office | Baidrabad S.O |
| Related head office | Jehanabad H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 804402 | Fatehpur Sanda B.O | Arwal | Arwal | Bihar |
| 804402 | Hasanpur B.O | Arwal | Arwal | Bihar |
| 804402 | Makhdumabad B.O | Arwal | Arwal | Bihar |
| 804402 | Baidrabad S.O | Arwal | Gaya | Bihar |
| 804402 | Khabhaini B.O | Arwal | Gaya | Bihar |
| 804402 | Rampur Baina B.O | Arwal | Gaya | Bihar |
| 804402 | Rampur Chouram B.O | Arwal | Gaya | Bihar |
| 804402 | Sarwan B.O | Kaler | Gaya | Bihar |
| 804402 | Walidad B.O | Kaler | Gaya | Bihar |