Business: Mukesh Ambani

SAM PANTHAKY/AFP/Getty Images

Business: Mukesh Ambani

Age: 52
Chairman, Reliance Industries

Mukesh Ambani, chairman of $34 billion Reliance Industries is known to pull off world class projects in record time. The second-largest private sector conglomerate's interests range from oil and gas to synthetic fiber. One of the richest men in India, he owns several jets, is building a 60-story apartment building for his family in Mumbai, and owns a cricket team that is part of the Indian Premier League, the global cricket league beginning its second season on Apr. 18. After betting big on retail, opening 940 stores across 16 formats in two years, his Reliance Retail is downsizing.