| Office Name | Bairia B.O |
| Pincodes | 854113 |
| Area | Bairia |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Katihar |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Bairia B.O |
| Pincodes | 855101 |
| Area | Bairia |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Kishanganj |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Bairia B.O |
| Pincodes | 824303 |
| Area | Bairia |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Aurangabad Bihar |
| Postal Region | Patna Hq |
| District | Aurangabad Bh |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Bairia B.O |
| Pincodes | 800007 |
| Area | Bairia |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Patna |
| Postal Region | Patna Hq |
| District | Patna |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Bairia B.O |
| Pincodes | 815314 |
| Area | Bairia |
| Office Status | Branch Post Office |
| Postal Circle | Jharkhand |
| Postal Division | Giridih |
| Postal Region | Ranchi |
| District | Giridh |
| State | Jharkhand |
| Telephone No. | Na |