| Office Name | Hardia B.O |
| Pincodes | 851204 |
| Area | Hardia |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Begusarai |
| Postal Region | Muzaffarpur |
| District | Khagaria |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Hardia B.O |
| Pincodes | 845401 |
| Area | Hardia |
| 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 | Hardia B.O |
| Pincodes | 848209 |
| Area | Hardia |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Samastipur |
| Postal Region | Muzaffarpur |
| District | Samastipur |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Hardia B.O |
| Pincodes | 841404 |
| Area | Hardia |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Siwan |
| Postal Region | Muzaffarpur |
| District | Siwan |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Hardia B.O |
| Pincodes | 841226 |
| Area | Hardia |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Siwan |
| Postal Region | Muzaffarpur |
| District | Siwan |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Hardia B.O |
| Pincodes | 332716 |
| Area | Hardia |
| Office Status | Branch Post Office |
| Postal Circle | Rajasthan |
| Postal Division | Jhunjhunu |
| Postal Region | Jodhpur |
| District | Jhujhunu |
| State | Rajasthan |
| Telephone No. | Na |