PinCode: 813203, Kasri Post Office, Colgong, Bhagalpur, Bihar
| Post Office | Kasri |
| Post Office Status | Branch Post Office (Delivery) |
| PinCode | 813203
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| Telephone | |
| Town/Taluk | Colgong |
| District | Bhagalpur |
| State | Bihar |
| Postal Division | Bhagalpur |
| Postal Region | Patna HQ |
| Postal Circle | Bihar |
List of Other Post Offices in Colgong, Bhagalpur, Bihar