The system the dabbawalas have developed over the years revolves around strong teamwork and strict time-management. At 9am every morning, home-made meals are picked up in special boxes, which are loaded onto trolleys and pushed to a railway station. They then make their way by train to an unloading station. The boxes are rearranged so that those going to similar destinations, indicated by a system of coloured lettering, end up on the same trolley. The meals are then delivered—99.9999% of the time, to the right address.