Mukesh Ambani, whose family founded Observer Research Foundation, holds a 44.7% stake in which company?
Observer Research Foundation:  ORF was founded by the Ambani family and is currently endowed by Mukesh Ambani's Reliance Group. Mukesh Ambani: 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 most valuable company by market value. Mukesh Ambani:  He holds a 44.7% stake in the company.
shareholder of Reliance Industries Limited