Claim: Mukesh Ambani is a managing director.
Evidence: Mukesh Dhirubhai Ambani -LRB- born 19 April 1957 -RRB- is an Indian business magnate who is the chairman , managing director and largest shareholder of Reliance Industries Limited -LRB- RIL -RRB- , a Fortune Global 500 company and India 's second-most valuable company by market value.