Arnadi BO is the primary post office registered under PIN code 805129 in Nawada, Bihar. This code sits within the Eastern Postal Region, with 7 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Arnadi BO | BO | Branch Post Office |
| Dhandhar BO | BO | Branch Post Office |
| Khanpur BO | BO | Branch Post Office |
| Manjhaway BO | BO | Branch Post Office |
| Bhadseni BO | BO | Branch Post Office |
| Dariyapur BO | BO | Branch Post Office |
| Tungi SO | SO | Sub Post Office |
