Pincode 841406 is a 6-digit postal code serving 16 post offices in Siwan district, Bihar. Basantpur SO Siwan is the Post Office for this area, located at 26.2270°N, 84.3564°E. The first digit ‘8’ identifies the Bihar postal region; the full code pinpoints the Siwan delivery zone.
| Post Office | Type |
|---|---|
| Basantpur SO Siwan | Post Office |
| Baghi BO | Branch Post Office |
| Baijubarhoga BO | Branch Post Office |
| Basaowan BO | Branch Post Office |
| Chorauli BO | Branch Post Office |
| Chorma BO | Branch Post Office |
| Hussaipurnand BO | Branch Post Office |
| Jagatpur BO | Branch Post Office |
| Kauria BO | Branch Post Office |
| Kherwa BO | Branch Post Office |
| Mohmda Bazar BO | Branch Post Office |
| Molnapur BO | Branch Post Office |
| Sahrkola BO | Branch Post Office |
| Sekhpura BO | Branch Post Office |
| Sohilpatti BO | Branch Post Office |
| Sughri 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.