For the first time in Delhi, cars and bikes will run on one level and metro trains on another, on the same structure. Delhi’s First Double-Decker Viaduct Is Ready (Almost)The first double-decker viaduct has come up between Bhajanpura and Yamuna Vihar metro stations on the Maujpur-Majlis Park corridor. Metro trains can already move on the upper deck. This route will run India’s first three-coach metro trains, mainly for short city travel in South Delhi. Impact of Delhi Double-Double Metro on Real EstateWhenever a new metro line comes up, nearby areas usually start getting noticed.