Pincode 841241 · Siwan District · Bihar
| Name | Gambhria BO |
| Type | Branch Post Office |
| Pincode | 841241 |
| Taluk | Siwan Division |
| District | |
| State | |
| Coordinates | 26.1645, 84.4149 |
| Post Office | Type |
|---|---|
| Branch Post Office | |
| Branch Post Office | |
| Branch Post Office |
Siwan, Bihar. Map data: OpenStreetMap, CARTO.
| Jasauli BO | Branch Post Office |
| Nainpura BO | Branch Post Office |
| Pachrukhi SO | Post Office |
| Sarauti BO | Branch Post Office |
| Sonbarsa BO | Branch Post Office |