It was part of the Union of princely states of Punjab, then came under the Punjab Province during British period and Punjab State after independence.

1.11.1966 - carved out of Punjab.

1. AMBALA: A cantonment with a number of military establishments.Scientific instruments, kitchen ware, submersible pumps dominate the industrial area.
2. BHIWANI: Textile industries are dominant. Textile Technology Institute is located here.
3. FARIDABAD: Highly industrialized city. Small scale industries dominate. Suraj Kund craft Mela is very famous held annually in February.
4. FATEHABAD : Founded by Firoz Shah Tughlaq the Mughal Emperor and named after his son Fateh Khan.
5. GURGAON: Highly industrialized district with Maruti Udyog, Hero Honda, as major industries along with a number IT companies.
6. HISAR;
7. JHAJJAR : Ceramics, Glassware, Chemicals, Engineering, Electrical and Electronic industries.
8. JIND;
9. KAITHAL;
10.KARNAL: Famous for shoes. Dairy and Agricultural Research Institutes are there.
11. KURUKSHETRA: Believed to be the place of Kurukshetra war of Mahabharata.Holy place for Hindus.
12.MAHENDRAGARH:
13.MEWAT:
14.PALWAL;
15.PANCHKULA;
16.PANIPAT: Historically important - Three wars in 1526, 1556, and 1761 took place here in the Indian history. Handloom goods is very famous.
17.REWARI: Brass Utensils and hand made shoes are very famous.
18.SIRSA: Cotton and Citrus Fruits.
19.SONIPAT: Agriculturally important place;
20.YAMUNANAGAR: Industrialised district.
21.ROHTAK: Industrialized district.

1. Kalpana Chawla - The famous Indian born US astronaut who died of the Columbia space shuttle disaster.
2. Kapil Dev: The famous Indian Cricketer who captained the world cup winning team of 1983.
3. Lala Lajpat Rai: The famous freedom fighter known as Punjab Kesari.
4. Mallika Sherawat : Hindi Cine Actress.

Bhagwat Dayal Sharma - 1966-1967.