There are 11 post offices under PIN code 123303.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Bawwa B.O | Branch Office | Delivery | Bawwa | Mahendragarh | Gurgaon | Ambala Hq | Haryana | Haryana |
| 2 | Bisowa B.O | Branch Office | Non-Delivery | Bisowa | Mahendragarh | Gurgaon | Ambala Hq | Haryana | Haryana |
| 3 | Jharoda B.O | Branch Office | Delivery | Jharoda | Mahendragarh | Gurgaon | Ambala Hq | Haryana | Haryana |
| 4 | Jholri B.O | Branch Office | Delivery | Jhoiri | Mahendragarh | Gurgaon | Ambala Hq | Haryana | Haryana |
| 5 | Karoli B.O | Branch Office | Non-Delivery | Karoli | Mahendragarh | Gurgaon | Ambala Hq | Haryana | Haryana |
| 6 | Kohrar B.O | Branch Office | Delivery | Kohrar | Mahendragarh | Gurgaon | Ambala Hq | Haryana | Haryana |
| 7 | Lilodh B.O | Branch Office | Delivery | Lilodh | Mahendragarh | Gurgaon | Ambala Hq | Haryana | Haryana |
| 8 | Lookhi B.O | Branch Office | Delivery | Lookhi | Mahendragarh | Gurgaon | Ambala Hq | Haryana | Haryana |
| 9 | Nahar S.O | Sub Office | Delivery | Nahar | Rewari | Gurgaon | Ambala Hq | Haryana | Haryana |
| 10 | Nayagaon B.O | Branch Office | Delivery | Naigawan | Mahendragarh | Gurgaon | Ambala Hq | Haryana | Haryana |
| 11 | Nehrugarh B.O | Branch Office | Non-Delivery | Nehrugarh | Mahendragarh | Gurgaon | Ambala Hq | Haryana | Haryana |