| Post Office | Karnawas |
| Division | Gurgaon |
| Region | Ambala Hq |
| Circle | Haryana |
| Taluka | Karnawas |
| District | Rewari |
| State | Haryana |
| Phone | NA |
| Sub Office | Kosli S.O |
| Head Office | Narnaul H.O |
| Pincode |
123302
|
| Post Office | Karnawas |
| Division | Gurgaon |
| Region | Ambala Hq |
| Circle | Haryana |
| Taluka | Karnawas |
| District | Rewari |
| State | Haryana |
| Phone | NA |
| Sub Office | Rewari S.O |
| Head Office | Narnaul H.O |
| Pincode |
123401
|