| Office Name | Kalwan B.O |
| Pincodes | 126116 |
| Area | Kalwan |
| Office Status | Branch Post Office |
| Postal Circle | Haryana |
| Postal Division | Karnal |
| Postal Region | Ambala Hq |
| District | Jind |
| State | Haryana |
| Telephone No. | Na |
| Office Name | Kalwan B.O |
| Pincodes | 126113 |
| Area | Kalwan |
| Office Status | Branch Post Office |
| Postal Circle | Haryana |
| Postal Division | Karnal |
| Postal Region | Ambala Hq |
| District | Jind |
| State | Haryana |
| Telephone No. | Na |
| Office Name | Kalwan S.O |
| Pincodes | 423501 |
| Area | Kalwan |
| Office Status | Sub Post Office |
| Postal Circle | Maharashtra |
| Postal Division | Malegaon |
| Postal Region | Aurangabad |
| District | Nashik |
| State | Maharashtra |
| Telephone No. | 02592-221020 |
| Office Name | Kalwan B.O |
| Pincodes | 303508 |
| Area | Kalwan |
| Office Status | Branch Post Office |
| Postal Circle | Rajasthan |
| Postal Division | Jaipur Moffusil |
| Postal Region | Jaipur Hq |
| District | Dausa |
| State | Rajasthan |
| Telephone No. | Na |
| Office Name | Kalwan B.O |
| Pincodes | 140117 |
| Area | Kalwan |
| Office Status | Branch Post Office |
| Postal Circle | Punjab |
| Postal Division | Chandigarh |
| Postal Region | Chandigarh Hq |
| District | Ropar |
| State | Punjab |
| Telephone No. | Na |