| Office Name | Katarmala B.O |
| Pincodes | 851130 |
| Area | Katarmala |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Begusarai |
| Postal Region | Muzaffarpur |
| District | Begusarai |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Katarmala B.O |
| Pincodes | 844114 |
| Area | Katarmala |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Vaishali |
| Postal Region | Patna Hq |
| District | Vaishali |
| State | Bihar |
| Telephone No. | Na |