PinCode: 821105, Karamnasa Post Office, Durgawati, Kaimur, Bihar
| Post Office | Karamnasa |
| Post Office Status | Branch Post Office (Delivery) |
| PinCode | 821105
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| Telephone | |
| Town/Taluk | Durgawati |
| District | Kaimur |
| State | Bihar |
| Postal Division | Rohtas |
| Postal Region | Patna HQ |
| Postal Circle | Bihar |
List of Other Post Offices in Durgawati, Kaimur, Bihar