| Office Name | Kolwara B.O |
| Pincodes | 851216 |
| Area | Kolwara |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Begusarai |
| Postal Region | Muzaffarpur |
| District | Khagaria |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kolwara B.O |
| Pincodes | 843123 |
| Area | Kolwara |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Muzaffarpur |
| Postal Region | Muzaffarpur |
| District | Muzaffarpur |
| State | Bihar |
| Telephone No. | Na |