Mercurial Transformer Mukesh Ambani built three sector-dominating businesses under RIL and cleaned off the conglomerate's debts by raising Rs 2.89 lakh crore Mukesh Ambani, Chairman and Managing Director of Reliance Industries - Photograph by Bandeep Singh Tmpossible is not a fact. It's an opinion, stated boxing legend Muhammad Ali. That applies to billionaire Mukesh Ambani too. In 1997, his father Dhirubhai Ambani asked him to build Asia's largest petroleum refinery at Jamnagar in 24 months, against the usual 60 months then. Mukesh Ambani charted out a new work schedule, counting backwards from the target date and pulled it off. When it came to creating two consumer focused businesses almost two decades later, sceptics said it would be impossible for Ambani. He proved them wrong by building India's most profitable telecom and retail businesses - Reliance Jio and Reliance Retail - by simply widening the scope of the sectors.