| Office Name | Dharhara B.O |
| Pincodes | 852109 |
| Area | Dharhara |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Saharsa |
| Postal Region | Muzaffarpur |
| District | Supaul |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Dharhara B.O |
| Pincodes | 841437 |
| Area | Dharhara |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Siwan |
| Postal Region | Muzaffarpur |
| District | Gopalganj |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Dharhara B.O |
| Pincodes | 805101 |
| Area | Dharhara |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Nawadha |
| Postal Region | Patna Hq |
| District | Nawada |
| State | Bihar |
| Telephone No. | Na |