Ambala is a city and a municipal corporation in Ambala district in the state of Haryana, India, located on the border with the state of Punjab and in proximity of the state capital Chandigarh. Politically; Ambala has two sub-areas: Ambala Cantonment (Ambala Cantt) and Ambala City, approximately 3 kilometers apart, therefore it is also known as “Twin City”.It has a large Indian Army and Indian Air Force presence within its cantonment area. 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 (28 miles) south of Chandigarh, the state capital, 148 km (93 miles) southwest of Shimla, 198 km (121 miles) north of New Delhi and 260 km (155 miles) southeast of Amritsar.Gurudwara Manji Sahib is also situated in Ambala.
It is said that Ambala District was founded by Amba Rajput during the 14th century AD.Another version is that the name is a corruption of Amba Wala meaning the mango-village, from mango groves which existed in its immediate neighborhood.Still, another version is that the District has taken its name after goddess “Bhawani Amba” whose Temple still exists in Ambala city.
As of 2011 India census, Ambala UA had a population of 207,934 consisting of 112,840 males and 95,094 females, a ratio of 843. there were 20,687 children 0-6 and Ambala had an average literacy rate of 89.31%, with 91.76% of males and 86.41% of females literate.
Ambala is known as city of scientific instruments.It is a major scientific products market and is a hub for products like glass apparatus, microscopes, laboratory equipment etc. Ambala constitutes nearly 34% of the total production of scientific instruments produced in India.
Ambala is connected to all of the other major cities of north India including Delhi, Chandigarh, Amritsar and Shimla. It is a big interchange for various commuters for all neighbouring states.The Ambala Cantt bus stand sees roughly 50,000 commuters daily.National highway NH 1 popularly known as GT road passes through Ambala and connects it to National capital Delhi and Amritsar. NH 22 connects it to state capital Chandigarh and Shimla.Apart from the Interstate service, Ambala also houses one of the oldest local bus service in Haryana, which is run by both Haryana roadways and private companies. Other means of local transportation include auto rickshaws and cycle rickshaws.