Gagaura BO is the primary post office registered under PIN code 802117 in Buxar, Bihar. This code sits within the Eastern Postal Region, with 9 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Gagaura BO | BO | Branch Post Office |
| Bikaram English BO | BO | Branch Post Office |
| Indaur BO | BO | Branch Post Office |
| Itarhian BO | BO | Branch Post Office |
| Khocharia BO | BO | Branch Post Office |
| Kakaria BO | BO | Branch Post Office |
| Nehalpur BO | BO | Branch Post Office |
| Saisar Ganghari BO | BO | Branch Post Office |
| Dhansoi SO | SO | Sub Post Office |
