Balha BO is the primary post office registered under PIN code 852130 in Supaul, Bihar. This code sits within the Eastern Postal Region, with 10 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Balha BO | BO | Branch Post Office |
| Hati BO | BO | Branch Post Office |
| Nemua BO | BO | Branch Post Office |
| Sukhpur SO | SO | Sub Post Office |
| Bakaur BO | BO | Branch Post Office |
| Dumra BO | BO | Branch Post Office |
| Telwa Situhar BO | BO | Branch Post Office |
| Barahihat BO | BO | Branch Post Office |
| Basbitti BO | BO | Branch Post Office |
| Parsharma BO | BO | Branch Post Office |
