Dhirajlal Hirachand Ambani, one of the leading Indian businessmen, was born on December 28, 1932 in Chorwad, Gujarat. Popularly known as Dhirubhai Ambani, he heads The Reliance Industries, India's largest private enterprise. 

Dhirubhai started off as a small time worker with Arab merchants in the 1950s and moved to Mumbai in 1958 to start his own business in spices. After making modest profits, he moved into textiles and opened his mill near Ahmedabad. Dhirubhai founded Reliance Industries in 1958. After that it was a saga of expansions and successes. 

Reliance, acknowledged as one of the best-run companies in the world has various sectors like petrochemicals, textiles and is  involved in the production of crude oil and gas, to polyester and polymer products. The companies refinery at Jamnagar accounts for over 25% of India's total refining capacity and their plant at Hazira is the biggest chemical complex in India. The company has further diversified into Telecom, Insurance and Internet Businesses, the Power Sector and so on. Now the Reliance group with over 85,000 employees provides almost 5% of the Central Government's total revenue. 

Dhirubhai has been one among the select Forbes billionaires and has also figured in the Sunday Times list of top 50 businessmen in Asia. His industrious nature and willingness to take on any risk has made him what he is. In 1986 after a heart attack he has handed over his empire to his two sons Anil and Mukesh. His sons are carrying on the successful tradition of their illustrious father.