| S.No | Post Office Name | Pincode | Circle Name | Region Name | Division Name | Office Type | Delivery | District | State Name | Latitude | Longitude |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Barhani Bazar BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 2 | Barhni BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 3 | Basopali BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 4 | Benusar BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 5 | Benusar Bujurg BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 6 | Chanaur BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 7 | Chhapmathia BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 8 | Gaushalaroad Siwan SO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | PO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 9 | Hakam BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 10 | Khalishpur BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 11 | Mahuwari BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 12 | Nathuchhap BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 13 | Papaur BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 14 | Sahlaur BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 15 | Sarwe BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 16 | Siwan Mission House BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 17 | Surwala BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |
| 18 | Ukhai BO | 841227 | Bihar Circle | Muzaffarpur Region | Siwan Division | BO | Delivery | SIWAN | BIHAR | 84.35807 | 26.21991 |