PinCode: 829118, Jainagar Post Office, Patratu, Ramgarh, Jharkhand
| Post Office | Jainagar |
| Post Office Status | Branch Post Office (Delivery) |
| PinCode | 829118
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| Telephone | |
| Town/Taluk | Patratu |
| District | Ramgarh |
| State | Jharkhand |
| Postal Division | Hazaribagh |
| Postal Region | Ranchi |
| Postal Circle | Jharkhand |
List of Other Post Offices in Patratu, Ramgarh, Jharkhand