Arna BO is the primary post office registered under PIN code 841417 in Saran, Bihar. This code sits within the Eastern Postal Region, with 14 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Arna BO | BO | Branch Post Office |
| Kawalpura BO | BO | Branch Post Office |
| Rasauli BO | BO | Branch Post Office |
| Balsohi BO | BO | Branch Post Office |
| Dhenuki BO | BO | Branch Post Office |
| Dumari Chhapia BO | BO | Branch Post Office |
| Jaithar BO | BO | Branch Post Office |
| Masrakh SO | SO | Sub Post Office |
| Bahrauli BO | BO | Branch Post Office |
| Pakari BO | BO | Branch Post Office |
| Chhapia BO | BO | Branch Post Office |
| Sherukaha BO | BO | Branch Post Office |
| Nawada BO | BO | Branch Post Office |
| Sagar Sultanpur BO | BO | Branch Post Office |
