PinCode: 231210, Kalwari Mafi Post Office, Mirzapur, Sonbhadra, Uttar Pradesh
| Post Office | Kalwari Mafi |
| Post Office Status | Branch Post Office (Delivery) |
| PinCode | 231210
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| Telephone | |
| Town/Taluk | Mirzapur |
| District | Sonbhadra |
| State | Uttar Pradesh |
| Postal Division | Mirzapur |
| Postal Region | Allahabad |
| Postal Circle | Uttar Pradesh |
List of Other Post Offices in Mirzapur, Sonbhadra, Uttar Pradesh