| Office Name | Bairiya B.O |
| Pincodes | 845434 |
| Area | Bairiya |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | East Champaran |
| Postal Region | Muzaffarpur |
| District | East Champaran |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Bairiya B.O |
| Pincodes | 845433 |
| Area | Bairiya |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | East Champaran |
| Postal Region | Muzaffarpur |
| District | East Champaran |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Bairiya B.O |
| Pincodes | 845424 |
| Area | Bairiya |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | East Champaran |
| Postal Region | Muzaffarpur |
| District | East Champaran |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Bairiya B.O |
| Pincodes | 843327 |
| Area | Bairiya |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Sitamarhi |
| Postal Region | Muzaffarpur |
| District | Sitamarhi |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Bairiya B.O |
| Pincodes | 841508 |
| Area | Bairiya |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Siwan |
| Postal Region | Muzaffarpur |
| District | Gopalganj |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Bairiya B.O |
| Pincodes | 822125 |
| Area | Bairiya |
| Office Status | Branch Post Office |
| Postal Circle | Jharkhand |
| Postal Division | Palamau |
| Postal Region | Ranchi |
| District | Garhwa |
| State | Jharkhand |
| Telephone No. | Na |