PIN code 851127 belongs to Birpur BO (Branch Post Office), located in Begusarai district, Bihar. It falls under the Eastern Postal Region and is served by 13 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Birpur BO | BO | Branch Post Office |
| Dafarpur BO | BO | Branch Post Office |
| Fazilpur BO | BO | Branch Post Office |
| Jokia BO | BO | Branch Post Office |
| Koria Haibatpur BO | BO | Branch Post Office |
| Pabra BO | BO | Branch Post Office |
| Dihpar BO | BO | Branch Post Office |
| Maheswara BO | BO | Branch Post Office |
| Panapur BO | BO | Branch Post Office |
| Muzaffara BO | BO | Branch Post Office |
| Pahsara Babhangama BO | BO | Branch Post Office |
| Manjhaul SO | SO | Sub Post Office |
| Saraunja BO | BO | Branch Post Office |
