PIN code 841231 – Siwan, Bihar
841231 is the PIN code of 9 post offices in Siwan district, Bihar, served by the Andar SO sub office.
| Post office | Type | Delivery | Division |
|---|---|---|---|
| Andar SOMap | Post office | Yes | Siwan Division |
| Bhawrajpur BOMap | Branch office | Yes | Siwan Division |
| Faridpur BOMap | Branch office | Yes | Siwan Division |
| Gaighat BOMap | Branch office | Yes | Siwan Division |
| Jaijore BOMap | Branch office | Yes | Siwan Division |
| Kherai BOMap | Branch office | Yes | Siwan Division |
| Nadiwan BOMap | Branch office | Yes | Siwan Division |
| Nand Pur Amwari BOMap | Branch office | Yes | Siwan Division |
| Tiyan BOMap | Branch office | Yes | Siwan Division |
Source: India Post PIN code directory (Open Government Data). Branch offices usually get mail through their sub or head office.