Mukesh Ambani is the Chairman and MD of India's largest private sector company, RIL (Reliance Industries Limited). His company deals in refining, petrochemicals, oil & gas sectors, and retailing. He was born on April 19, 1957, in Yemen. He is the son of Dhirubhai Ambani and Kokilaben Ambani and elder brother of Anil Ambani. In 2015, Mukesh launched Jio, his own 4G network.