PinCode: 854105, Katihar Post Office, Katihar, Katihar, Bihar
| Post Office | Katihar |
| Post Office Status | Head Post Office (Delivery) |
| PinCode | 854105
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| Telephone | 06452-242301 |
| Town/Taluk | Katihar |
| District | Katihar |
| State | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| Postal Circle | Bihar |
List of Other Post Offices in Katihar, Katihar, Bihar