| Post office | Basantpur S.O (Siwan) |
| Pin code | 841406 |
| Office type | S.O |
| Taluk / city | Siwan |
| District name | Siwan |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | Siwan |
| Region name | Muzaffarpur |
| Circle name | Bihar |
| Related sub office | NA |
| Related head office | Siwan H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 841406 | Baghi B.O | Siwan | Siwan | Bihar |
| 841406 | Baijubarhoga B.O | Siwan | Siwan | Bihar |
| 841406 | Basantpur S.O (Siwan) | Siwan | Siwan | Bihar |
| 841406 | Basaowan B.O | Siwan | Siwan | Bihar |
| 841406 | Chorauli B.O | Siwan | Siwan | Bihar |
| 841406 | Chorma B.O | Siwan | Siwan | Bihar |
| 841406 | Hussaipurnand B.O | Siwan | Siwan | Bihar |
| 841406 | Jagatpur B.O | Siwan | Siwan | Bihar |
| 841406 | Kauria B.O | Siwan | Siwan | Bihar |
| 841406 | Kherwa B.O | Siwan | Siwan | Bihar |
| 841406 | Mohmda Bazar B.O | Siwan | Siwan | Bihar |
| 841406 | Molnapur B.O | Siwan | Siwan | Bihar |
| 841406 | Sahrkola B.O | Siwan | Siwan | Bihar |
| 841406 | Sekhpura B.O | Siwan | Siwan | Bihar |
| 841406 | Sohilpatti B.O | Siwan | Siwan | Bihar |
| 841406 | Sughri B.O | Siwan | Siwan | Bihar |