Gautam Adani needs no introduction. One of the richest men in the world, he also helms a business empire that is now India's largest player in ports and renewable energy. He is also the country's largest private sector player in sectors like airports, city gas distribution, power transmission, thermal power, edible oil, and railway lines. Yet, look beyond these facts, and startlingly little is known about Gautam Adani, the maverick businessman;...