Pincode 813106 is a 6-digit postal code serving 25 post offices in Banka district, Bihar. Katoria SO is the Post Office for this area, located at 24.7475°N, 86.7183°E. The first digit ‘8’ identifies the Bihar postal region; the full code pinpoints the Banka delivery zone.
| Post Office | Type |
|---|---|
| Katoria SO | Post Office |
| Bairoganj BO | Branch Post Office |
| Baniakura BO | Branch Post Office |
| Barney BO | Branch Post Office |
| Barwasini BO | Branch Post Office |
| Bhelwa BO | Branch Post Office |
| Charkapathar BO | Branch Post Office |
| Harhar BO | Branch Post Office |
| Jaipur BO | Branch Post Office |
| Kamdeodih BO | Branch Post Office |
| Kaswa Vasila BO | Branch Post Office |
| Kathoun B.O | Branch Post Office |
| Katsakrah BO | Branch Post Office |
| Kenduar(Chandwari) BO | Branch Post Office |
| Keruar BO | Branch Post Office |
| Kolhasar BO | Branch Post Office |
| Malbathan BO | Branch Post Office |
| Mathura(Uttari Barney) BO | Branch Post Office |
| Mothabari BO | Branch Post Office |
| Papraiba BO | Branch Post Office |
| Pirra BO | Branch Post Office |
| Supaha BO | Branch Post Office |
| Tetaria BO | Branch Post Office |
| Tonapathar BO | Branch Post Office |
| Uparchakmarhia 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.