| Office Name | Mamrejpur B.O |
| Pincodes | 821104 |
| Area | Mamrejpur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Rohtas |
| Postal Region | Patna Hq |
| District | Rohtas |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Mamrejpur B.O |
| Pincodes | 844504 |
| Area | Mamrejpur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Vaishali |
| Postal Region | Patna Hq |
| District | Vaishali |
| State | Bihar |
| Telephone No. | Na |