Mukesh Ambani is a chair.
Mukesh Dhirubhai Ambani ( born 19 April 1957 ) is an Indian business magnate who is the chairman , managing director and largest shareholder of Reliance Industries Limited ( RIL ) , a Fortune Global 500 company and India 's second-most valuable company by market value . He is the elder son of the late Dhirubhai Ambani and Kokilaben Ambani and the brother of Anil Ambani . In 2016 , he was ranked 38 , and is the only Indian businessman , on Forbes list of the world 's most powerful people . He resides at the Antilia Building , one of the world 's most expensive private residences . He was the chairman of the board of Indian Institute of Management Bangalore , which is one of the leading business schools in India .