The document summarizes the Dabbawalla system of delivering home-cooked lunches in Mumbai, India. Over 5,000 Dabbawalla workers deliver 200,000 lunch boxes daily using an informal and efficient system. They sort and transfer lunch boxes at railway stations to ensure accurate delivery. The Dabbawalla system relies on strong teamwork, social bonds between workers, and an emphasis on honesty, timeliness and customer service. It has been studied by various organizations for its low-cost and high-accuracy approach to logistics and supply chain management.