PinCode: 821104, Mamrejpur Post Office, Chenari, Rohtas, Bihar
| Post Office | Mamrejpur |
| Post Office Status | Branch Post Office (Delivery) |
| PinCode | 821104
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| Telephone | |
| Town/Taluk | Chenari |
| District | Rohtas |
| State | Bihar |
| Postal Division | Rohtas |
| Postal Region | Patna HQ |
| Postal Circle | Bihar |
List of Other Post Offices in Chenari, Rohtas, Bihar