PinCode: 222136, Gutwan Post Office, Mariahu, Jaunpur, Uttar Pradesh
| Post Office | Gutwan |
| Post Office Status | Branch Post Office (Delivery) |
| PinCode | 222136
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| Telephone | |
| Town/Taluk | Mariahu |
| District | Jaunpur |
| State | Uttar Pradesh |
| Postal Division | Jaunpur |
| Postal Region | Allahabad |
| Postal Circle | Uttar Pradesh |
List of Other Post Offices in Mariahu, Jaunpur, Uttar Pradesh