High Quality Content by WIKIPEDIA articles! Hindustan Motors is an automobile manufacturer from India. It is part of the Birla Technical Services industrial group. The company was the largest car manufacturer in India before the rise of Maruti Udyog. It is the producer of the Ambassador car, widely used as a taxicab and as a government limousine. This car is based on the Morris Oxford, a British car that dates back to 1954. One of the original three car manufacturers in India, founded in 1942 by Mr. B.M. Birla , it was a leader in car sales until the 1980s, when the industry was opened up from protection. It began in Port Okha near Gujarat, and in 1948, moved to Uttarpara, West Bengal.