Pincode 841227 is a 6-digit postal code serving 18 post offices in Siwan district, Bihar. Gaushalaroad Siwan SO is the Post Office for this area, located at 26.2199°N, 84.3581°E. The first digit ‘8’ identifies the Bihar postal region; the full code pinpoints the Siwan delivery zone.
| Post Office | Type |
|---|---|
| Gaushalaroad Siwan SO | Post Office |
| Barhani Bazar BO | Branch Post Office |
| Barhni BO | Branch Post Office |
| Basopali BO | Branch Post Office |
| Benusar BO | Branch Post Office |
| Benusar Bujurg BO | Branch Post Office |
| Chanaur BO | Branch Post Office |
| Chhapmathia BO | Branch Post Office |
| Hakam BO | Branch Post Office |
| Khalishpur BO | Branch Post Office |
| Mahuwari BO | Branch Post Office |
| Nathuchhap BO | Branch Post Office |
| Papaur BO | Branch Post Office |
| Sahlaur BO | Branch Post Office |
| Sarwe BO | Branch Post Office |
| Siwan Mission House BO | Branch Post Office |
| Surwala BO | Branch Post Office |
| Ukhai BO | Branch Post Office |
Data sourced from India Post, Department of Posts, Government of India. Data last verified: May 2026.
Siwan, Bihar. Map data: OpenStreetMap, CARTO.