Kamruddinpur BO is the primary post office registered under PIN code 851134 in Begusarai, Bihar. This code sits within the Eastern Postal Region, with 6 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Kamruddinpur BO | BO | Branch Post Office |
| Keshave BO | BO | Branch Post Office |
| Singhaul BO | BO | Branch Post Office |
| Rachiahi Akashpur BO | BO | Branch Post Office |
| Ullao SO | SO | Sub Post Office |
| Binodpur BO | BO | Branch Post Office |
