The Mumbai-New Delhi Rajdhani Express will now run with Tejas-type "smart sleeper" coaches. The Tejas rakes are equipped with modern features. These high-tech coaches have bio-vacuum toilets, air-suspension bogies, CCTV cameras and much more. Coaches are provided with "ergonomically designed interiors, berths with fire resistant silicon foam, for the comfort and safety of passengers," according to Western Railway. (Video credit: ANI)