| Office Name | Barhni B.O |
| Pincodes | 841227 |
| Area | Barhni |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Siwan |
| Postal Region | Muzaffarpur |
| District | Siwan |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Barhni B.O |
| Pincodes | 272131 |
| Area | Barhni |
| Office Status | Branch Post Office |
| Postal Circle | Uttar Pradesh |
| Postal Division | Basti |
| Postal Region | Gorakhpur |
| District | Basti |
| State | Uttar Pradesh |
| Telephone No. | Na |
| Office Name | Barhni S.O |
| Pincodes | 272201 |
| Area | Barhni |
| Office Status | Sub Post Office |
| Postal Circle | Uttar Pradesh |
| Postal Division | Basti |
| Postal Region | Gorakhpur |
| District | Basti |
| State | Uttar Pradesh |
| Telephone No. | 05543-272030 |