Niti Aayog and Indian Railways have come out with a discussion paper for running 150 trains on 100 routes by private operators, envisaging an investment of Rs.22,500-crore. The discussion paper titled 'Private Participation: Passenger Trains' has identified 100 routes, including Mumbai Central-New Delhi, New Delhi- Patna, Allahabad-Pune and Dadar-Vadodara. The paper, prepared for discussions with stakeholders, has split the 100 routes into 10-12 clusters.