Target costing is a cost management tool used to reduce the overall cost of a product over its lifecycle. It focuses on customers, design, cross-functional involvement, and a lifecycle orientation. For Tata Nano, target costing was used to identify the maximum cost to manufacture the vehicle at its target selling price and profit margin. Tata Nano achieved its target cost by simplifying manufacturing processes, reducing inventory and working capital costs, eliminating unnecessary parts, establishing an efficient supply chain network, using a smaller design to reduce costs, and material substitution.