Singal, 35, runs one of the hottest mobile software design and development companies. He started Sourcebits in a tiny garage outside M.S. Ramaiah Institute of Technology in Bangalore. Today it occupies 46,000 sq. ft. in Electronic City, a major tech hub in Bangalore. He has designed more than 250 apps for all platforms — Apple, Android, BlackBerry. The company’s flagship product, Night Stand, an app that converts an iPhone into an alarm clock, alone has been downloaded more than 5 million times and earned close to $1 million. His clients include MIT Sloan, General Electric and Procter & Gamble.