Pincode 813101 is a 6-digit postal code serving 33 post offices in Banka district, Bihar. Amarpur SO Banka is the Post Office for this area, located at 24.8867°N, 86.9184°E. The first digit ‘8’ identifies the Bihar postal region; the full code pinpoints the Banka delivery zone.
| Post Office | Type |
|---|---|
| Amarpur SO Banka | Post Office |
| Abhiyudayasharan BO | Branch Post Office |
| Baidachak BO | Branch Post Office |
| Belsira BO | Branch Post Office |
| Bhadaria BO | Branch Post Office |
| Bharko BO | Branch Post Office |
| BHIKHANPUR | Branch Post Office |
| Bishambharchak BO | Branch Post Office |
| DUDHARI | Branch Post Office |
| Dumarama BO | Branch Post Office |
| Gorgama BO | Branch Post Office |
| JETHOR JAMUA | Branch Post Office |
| Kamdeopur BO | Branch Post Office |
| Kathail BO | Branch Post Office |
| Kenduar BO | Branch Post Office |
| Kolbuzurg BO | Branch Post Office |
| Mahadeopur BO | Branch Post Office |
| MAKDUMA | Branch Post Office |
| PARARIA CHAKKADIH | Branch Post Office |
| Pathada BO | Branch Post Office |
| Pawai SO BanBO | Branch Post Office |
| Rajpur BO | Branch Post Office |
| Rajwara BO | Branch Post Office |
| RAMCHANDRAPUR ITAHARI | Branch Post Office |
| Ranikita BO | Branch Post Office |
| Salempur BO | Branch Post Office |
| SAMUKHIYA | Branch Post Office |
| SAMUKHIYAMORE | Branch Post Office |
| Sihuri B.O | Branch Post Office |
| Sobhanpur Katoria BO | Branch Post Office |
| Sultanpur BO | Branch Post Office |
| Surhari BO | Branch Post Office |
| Telia Lowgain BO | Branch Post Office |
Data sourced from India Post, Department of Posts, Government of India. Data last verified: May 2026.
Banka, Bihar. Map data: OpenStreetMap, CARTO.