Pincode 841240 is a 6-digit postal code serving 4 post offices in Siwan district, Bihar. Mahuwal Mahal SO is the Post Office for this area, located at 26.0778°N, 84.6442°E. The first digit ‘8’ identifies the Bihar postal region; the full code pinpoints the Siwan delivery zone.
| Post Office | Type |
|---|---|
| Mahuwal Mahal SO | Post Office |
| Chandparsa BO | Branch Post Office |
| Merhi BO | Branch Post Office |
| Tarwaparsa 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.