| Post office | Bairiya B.O |
| Pin code | 845434 |
| Office type | B.O |
| Taluk / city | Areraj |
| District name | East Champaran |
| State name | Bihar |
| Delivery status | Delivery |
| Division name | East Champaran |
| Region name | Muzaffarpur |
| Circle name | Bihar |
| Related sub office | Sangrampur S.O (East Champaran) |
| Related head office | Motihari H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 845434 | Bairiya B.O | Areraj | East Champaran | Bihar |
| 845434 | Manglapur Rajpur B.O | Areraj | East Champaran | Bihar |
| 845434 | Puchharia B.O | Areraj | East Champaran | Bihar |
| 845434 | Sikandarpur B.O | Areraj | East Champaran | Bihar |
| 845434 | Tikaha Bhawanipur B.O | Areraj | East Champaran | Bihar |
| 845434 | Sangrampur S.O (East Champaran) | Sangrampur | East Champaran | Bihar |