Twelve states have saved INR 1.28 billion till date after the implementation of route optimisation in their public distribution system supply chain, the Ministry of Consumer Affairs, Food and Public Distribution said in a release highlighting the major activities of the Food and Public Distribution Department this year. "With the completion of one year into the optimisation exercise, route optimisation assessments have been completed in 30 states. Results show tremendous promise, with transportation costs estimated to be reduced by around INR 2.50 billion per year," the release said.