Ambala district is one of the 22 districts of Haryana state in the country of India with Ambala town serving as the administrative headquarters of the district. District Ambala lies on the North-Eastern edge of Haryana and borders Punjab and Himachal Pradesh. Ambala district is a part of Ambala Division.

Haryana is a state located in northwestern India. It was carved out after the linguistic reorganisation of Punjab on 1 November 1966. It is ranked 21st in terms of area, with less than 1.4% of India's land area. The state capital is Chandigarh, which it shares with the neighbouring state of Punjab; and the most populous city is Faridabad, which is a part of the National Capital Region. The city of Gurgaon is among India's largest financial and technology hubs. Haryana has 6 administrative divisions, 22 districts, 72 sub-divisions, 93 revenue tehsils, 50 sub-tehsils, 140 community development blocks, 154 cities and towns, 7,356 villages, and 6,222 villages panchayats.