Narnaul is Taluka (Tehsil) in Mahendragarh district of Haryana state. Narnaul has 10 areas (postal offices).
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 123023 | Bachhod PIN Code | Mahendragarh | Narnaul | Branch Office |
| 123021 | Bagahod PIN Code | Mahendragarh | Narnaul | Branch Office |
| 123021 | Bhocharia PIN Code | Mahendragarh | Narnaul | Branch Office |
| 123001 | Dublana PIN Code | Mahendragarh | Narnaul | B.O directly a/w Head Office |
| 123001 | Mini Sectt Narnaul PIN Code | Mahendragarh | Narnaul | Sub Office |
| 123023 | Nagal Nunia PIN Code | Mahendragarh | Narnaul | Branch Office |
| 123023 | Nangal Chaudhry PIN Code | Mahendragarh | Narnaul | Sub Office |
| 123001 | Narnaul City PIN Code | Mahendragarh | Narnaul | Sub Office |
| 123001 | Narnaul Kty PIN Code | Mahendragarh | Narnaul | Sub Office |
| 123021 | Sarai Bahadur PIN Code | Mahendragarh | Narnaul | Branch Office |