Barhipurgop BO is the primary post office registered under PIN code 841408 in Siwan, Bihar. This code sits within the Eastern Postal Region, with 7 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Barhipurgop BO | BO | Branch Post Office |
| Barkagaowan BO | BO | Branch Post Office |
| Bhikhampur BO | BO | Branch Post Office |
| Bhagwanpur Hat SO | SO | Sub Post Office |
| Hulesra BO | BO | Branch Post Office |
| Sahsrawan BO | BO | Branch Post Office |
| Sondhani BO | BO | Branch Post Office |
