PinCode: 804419, Karpi Post Office, Arwal, Gaya, Bihar
| Post Office | Karpi |
| Post Office Status | Sub Post Office (Delivery) |
| PinCode | 804419
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| Telephone | 06337-248777 |
| Town/Taluk | Arwal |
| District | Gaya |
| State | Bihar |
| Postal Division | Gaya |
| Postal Region | Patna HQ |
| Postal Circle | Bihar |
List of Other Post Offices in Arwal, Gaya, Bihar