The famous dabbawallahs of Mumbai can teach a thing or two to the likes of Deliveroo and Just Eat. Their meticulous methods have been subject of business management studies, their daily life has been captured in documentaries the world over. Yet nothing compares to seeing them in action at the city’s famous Churchgate station midmorning, delivering more than 250,000 lunch boxes from suburban homes straight to office workers in the city’s business district by lunch time.