PIN code 851130 belongs to Rajakpur BO (Branch Post Office), located in Begusarai district, Bihar. It falls under the Eastern Postal Region and is served by 6 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Rajakpur BO | BO | Branch Post Office |
| Sisauni Kothi BO | BO | Branch Post Office |
| Hasanpur BO | BO | Branch Post Office |
| Katarmala BO | BO | Branch Post Office |
| Naokothi SO | SO | Sub Post Office |
| Chhatauna BO | BO | Branch Post Office |
