PinCode: 841231, Andar Post Office, Andar, Siwan, Bihar
| Post Office | Andar |
| Post Office Status | Sub Post Office (Delivery) |
| PinCode | 841231
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| Telephone | 06154-111111 |
| Town/Taluk | Andar |
| District | Siwan |
| State | Bihar |
| Postal Division | Siwan |
| Postal Region | Muzaffarpur |
| Postal Circle | Bihar |
List of Other Post Offices in Andar, Siwan, Bihar