The banker got richer by $2 billion as shares of his Kotak Mahindra Bank soared to an all-time high. It is now one of the country's most expensive bank stocks. In July, the bank picked up a 15 percent stake in MCX, India's largest commodities exchange, founded by one-time rich-lister Jignesh Shah at a 24 percent discount to its market price. Kotak recently reduced his stake in the bank to 40 percent as required by the Reserve Bank of India, by selling part of his holdings to the Canada Pension Plan Investment Board. He's required to bring down his holding to 30 percent by 2016.
Fast Fact: In June, he became the second Indian to get Ernst & Young's World Entrepreneur of the Year award after NR Narayana Murthy (ranked 53) had won it in 2003.