PinCode: 811317, Dumarkola Post Office, Jamui, Jamui, Bihar
| Post Office | Dumarkola |
| Post Office Status | Branch Post Office (Delivery) |
| PinCode | 811317
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| Telephone | |
| Town/Taluk | Jamui |
| District | Jamui |
| State | Bihar |
| Postal Division | Monghyr |
| Postal Region | Patna HQ |
| Postal Circle | Bihar |
List of Other Post Offices in Jamui, Jamui, Bihar