Haryana (; Hindi: [ɦəɾɪˈjɑːɳɑː]) is an Indian state located in the northern part of the country. It was carved out of the former state of East Punjab on 1 November 1966 on a linguistic basis. It is ranked 21st in terms of area, with less than 1.4% (44,212 km2 or 17,070 sq mi) of India's land area. The state capital is Chandigarh, which it shares with the neighboring state of Punjab, and the most populous city is Faridabad, which is a part of the National Capital Region. The city of Gurugram 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.Haryana contains 32 special economic zones (SEZs), mainly located within the industrial corridor projects connecting the National Capital Region. Gurgaon is considered one of the major information technology and automobile hubs of India. Haryana ranks 11th among Indian states in human development index. The economy of Haryana is the 13th largest in India, with a gross state domestic product (GSDP) of ₹7.65 trillion (US$96 billion) and has the country's 5th-highest GSDP per capita of ₹240,000 (US$3,000). Haryana has the highest unemployment rate among Indian states.The state is rich in history, monuments, heritage, flora and fauna and tourism, with a well developed economy, national highways and state roads. It is bordered by Punjab and Himachal Pradesh to the north, by Rajasthan to the west and south, while river Yamuna forms its eastern border with Uttar Pradesh. Haryana surrounds the country's capital territory of Delhi on three sides (north, west and south), consequently a large area of Haryana state is included in the economically important National Capital Region of India for the purposes of planning and development.

Ambala () is a city and a municipal corporation in Ambala district in the state of Haryana, India, located on the border with the Indian state of Punjab and in proximity to both states capital Chandigarh. Politically, Ambala has two sub-areas: Ambala Cantonment (also known as Ambala Cantt) and Ambala City, eight kilometres apart, therefore it is also known as "Twin City". It has a large Indian Army and Indian Air Force presence within its cantonment area. It is located 200 km (124 mi) to the north of New Delhi, India's capital, and has been identified as a counter-magnet city for the National Capital Region to develop as an alternative center of growth to Delhi. Ambala separates the Ganges river network from the Indus river network and is surrounded by two rivers – Ghaggar and Tangri – to the north and to the south. Due to its geographical location, the Ambala district plays an important role in local tourism, being located 47 km (29 mi) south of Chandigarh, 50 km (31 mi) north of Kurukshetra, 148 km (92 mi) southwest of Shimla, 198 km (123 mi) north of New Delhi and 260 km (160 mi) southeast of Amritsar.