| Office Name | Mirganj B.O |
| Pincodes | 854304 |
| Area | Mirganj |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Purnia |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Mirganj S.O |
| Pincodes | 841438 |
| Area | Mirganj |
| Office Status | Sub Post Office |
| Postal Circle | Bihar |
| Postal Division | Siwan |
| Postal Region | Muzaffarpur |
| District | Gopalganj |
| State | Bihar |
| Telephone No. | 06150-231308 |
| Office Name | Mirganj B.O |
| Pincodes | 805102 |
| Area | Mirganj |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Nawadha |
| Postal Region | Patna Hq |
| District | Nawada |
| State | Bihar |
| Telephone No. | Na |