Barwasini BO is the primary post office registered under PIN code 813106 in Banka, Bihar. This code sits within the Eastern Postal Region, with 25 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Barwasini BO | BO | Branch Post Office |
| Baniakura BO | BO | Branch Post Office |
| Kamdeodih BO | BO | Branch Post Office |
| Kolhasar BO | BO | Branch Post Office |
| Katsakrah BO | BO | Branch Post Office |
| Pirra BO | BO | Branch Post Office |
| Uparchakmarhia BO | BO | Branch Post Office |
| Malbathan BO | BO | Branch Post Office |
| Harhar BO | BO | Branch Post Office |
| Katoria SO | SO | Sub Post Office |
| Papraiba BO | BO | Branch Post Office |
| Mothabari BO | BO | Branch Post Office |
| Keruar BO | BO | Branch Post Office |
| Tetaria BO | BO | Branch Post Office |
| Kathoun B.O | BO | Branch Post Office |
| Barney BO | BO | Branch Post Office |
| Bairoganj BO | BO | Branch Post Office |
| Charkapathar BO | BO | Branch Post Office |
| Jaipur BO | BO | Branch Post Office |
| Kenduar(Chandwari) BO | BO | Branch Post Office |
| Kaswa Vasila BO | BO | Branch Post Office |
| Bhelwa BO | BO | Branch Post Office |
| Supaha BO | BO | Branch Post Office |
| Tonapathar BO | BO | Branch Post Office |
| Mathura(Uttari Barney) BO | BO | Branch Post Office |
