| Office Name | Bairia S.O East Champaran |
| Pincodes | 845401 |
| Area | Bairia East Champaran |
| Office Status | Sub Post Office |
| Postal Circle | Bihar |
| Postal Division | East Champaran |
| Postal Region | Muzaffarpur |
| District | East Champaran |
| State | Bihar |
| Telephone No. | 06252-232934 |