| Office Name | Barhauna B.O |
| Pincodes | 848502 |
| Area | Barhauna |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Samastipur |
| Postal Region | Muzaffarpur |
| District | Samastipur |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Barhauna B.O |
| Pincodes | 811213 |
| Area | Barhauna |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Monghyr |
| Postal Region | Patna Hq |
| District | Munger |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Barhauna B.O |
| Pincodes | 805103 |
| Area | Barhauna |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Nawadha |
| Postal Region | Patna Hq |
| District | Nawada |
| State | Bihar |
| Telephone No. | Na |