Pincode 841242 is a 6-digit postal code serving 4 post offices in Siwan district, Bihar. Paterhi SO is the Post Office for this area, located at 26.1317°N, 84.6131°E. The first digit ‘8’ identifies the Bihar postal region; the full code pinpoints the Siwan delivery zone.
| Post Office | Type |
|---|---|
| Paterhi SO | Post Office |
| Choiapali BO | Branch Post Office |
| Paterha BO | Branch Post Office |
| Ratanparauli 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.