Every day without fail, the dubbawallas run a daily marathon through a labyrinth that is the streets of Bombayto deliver 200,000 home-cooked meals to offices all over the city. Even in blistering heat or during the monsoons, the dubbawallas deliver on-time, every time. They dont use barcodes or scanners, but keep track of each lunchbox (called a tiffin or dubba) using symbols to designate the destination and bearer of each meal. Many dubbawallas are in fact illiterate, but the system is so efficient that they were given a Six Sigma designation by Forbes magazinealongside Motorola and GEwith an error rate of less than one in 6,000,000. Join the dubbawallas as they deliver "Lunch on the Run".