Eight inter-city rail corridors in National Capital Region (NCR) are required to facilitate commuters as per a study report. The total cost of the rail link covering a distance of 640 km has been estimated at Rs 1,41,470 million. The longest leg of the rail link with 158 km has been proposed from Delhi to Alwar in Rajasthan covering Gurgaon and Rewari in Haryana at a cost of Rs 34,100 million. The shortest link between Delhi and Baraut via Shahdara at a cost of Rs 12,500 million will cover a distance of 56 km. Meerut, Palwal, Panipat, Khurja, Rohtak, Hapur, Bahadurgarh and Sonipat are the other cities for which rail corridors been proposed.