PinCode: 847230, Kauwaha Barhi Post Office, Harlakhi, Madhubani, Bihar
| Post Office | Kauwaha Barhi |
| Post Office Status | Branch Post Office (Delivery) |
| PinCode | 847230
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| Telephone | |
| Town/Taluk | Harlakhi |
| District | Madhubani |
| State | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| Postal Circle | Bihar |
List of Other Post Offices in Harlakhi, Madhubani, Bihar