| Post office | Trwa Parsia B.O |
| Pin code | 841435 |
| Office type | B.O |
| Taluk / city | Guthani |
| District name | Siwan |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | Siwan |
| Region name | Muzaffarpur |
| Circle name | Bihar |
| Related sub office | Guthni S.O |
| Related head office | Siwan H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 841435 | Trwa Parsia B.O | Guthani | Siwan | Bihar |
| 841435 | Balua B.O | Siwan | Siwan | Bihar |
| 841435 | Bhlua B.O | Siwan | Siwan | Bihar |
| 841435 | Chakari B.O | Siwan | Siwan | Bihar |
| 841435 | Chitakhal B.O | Siwan | Siwan | Bihar |
| 841435 | Dumrahar B.O | Siwan | Siwan | Bihar |
| 841435 | Guthni S.O | Siwan | Siwan | Bihar |
| 841435 | Srikalpur B.O | Siwan | Siwan | Bihar |
| 841435 | Tenua B.O | Siwan | Siwan | Bihar |