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A Mumbai dabbawalla, or lunch-box deliveryman, sorts a crate of tiffin boxes in Mumbai, 15 November 2007. Using the Mumbai commuter rail network, lunchbox carriers or 'dabbawallas' pick up hot food from homes and deliver it to some 200,000 hungry office workers in time for lunch. The 5,000-strong army of 'dabbawallas,' a century-old service, has long been studied by business schools around their world as a model for their great time management and organisation skills. AFP PHOTO/ Sajjad HUSSAIN (Photo credit should read SAJJAD HUSSAIN/AFP/Getty Images)

A Mumbai dabbawalla, or lunch-box deliveryman, sorts a crate of tiffin boxes in Mumbai, 15 November 2007.  Using the Mumbai commuter rail network, lunchbox carriers or 'dabbawallas' pick up hot food from homes and deliver it to some 200,000 hungry office workers in time for lunch. The 5,000-strong army of 'dabbawallas,' a century-old service, has long been studied by business schools around their world as a model for their great time management and organisation skills.   AFP PHOTO/ Sajjad HUSSAIN (Photo credit should read SAJJAD HUSSAIN/AFP/Getty Images)