Trust is at the core of Bombay’s amazing lunchbox delivery system. A housewife packs a freshly made lunch in a “Dabba,” a tin or aluminum container. A Dabbawala then picks it up at her house, and after changing hands three, four, or even five times, the lunch arrives on time at a distant office. Each Dabba on this litter is sorted by destination, according to the Dabbawala coding system. Passing from one Dabbawala to another, these lunches will be carried on bikes, heads, hands and arms. They almost always arrive at the right place and at the right time. (A mistake is made on only one out of six million deliveries.) After lunch, the empty Dabbas are picked up by Dabbawalas and delivered back to the homes of their customers that same day.