Pincode 841235 · Siwan District · Bihar
| Name | Harnatar BO |
| Type | Branch Post Office |
| Pincode | 841235 |
| Taluk | Siwan Division |
| District | |
| State | |
| Coordinates | 26.2270, 84.3564 |
| Post Office | Type |
|---|---|
| Branch Post Office | |
| Post Office | |
| Branch Post Office |
Siwan, Bihar. Map data: OpenStreetMap, CARTO.
| Kanhauli BO | Branch Post Office |
| Kumhatti BO | Branch Post Office |
| Mathia BO | Branch Post Office |
| Murakhap BO | Branch Post Office |
| Murera BO | Branch Post Office |
| Netwar BO | Branch Post Office |
| Tariwani BO | Branch Post Office |