PinCode: 854102, Harpatti Post Office, Banmankhi, Purnia, Bihar
| Post Office | Harpatti |
| Post Office Status | Branch Post Office (Delivery) |
| PinCode | 854102
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| Telephone | |
| Town/Taluk | Banmankhi |
| District | Purnia |
| State | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| Postal Circle | Bihar |
List of Other Post Offices in Banmankhi, Purnia, Bihar