| Office Name | Rosna S.O |
| Pincodes | 854117 |
| Area | Rosna |
| Office Status | Sub Post Office |
| Postal Circle | Bihar |
| Postal Division | Purnea |
| Postal Region | Muzaffarpur |
| District | Katihar |
| State | Bihar |
| Telephone No. | 06452-242301 |
| Office Name | Rosna B.O |
| Pincodes | 712149 |
| Area | Rosna |
| Office Status | Branch Post Office |
| Postal Circle | West Bengal |
| Postal Division | Hooghly North |
| Postal Region | South Bengal |
| District | Hooghly |
| State | West Bengal |
| Telephone No. | Na |