The first six-coach train for Delhi Metro's Phase-IV expansion arrived here on Friday, a statement said. The train set, manufactured by Alstom at its facility in Sricity near Chennai, was inaugurated on September 23 in the presence of Delhi Metro Railway Cooperation (DMRC) and Alstom delegates, the statement said. It has now been stationed at Delhi Metro's Mukundpur depot, where it will undergo a number of tests required for its statutory certification for revenue service as a part of established rules and protocols, it said. Under the RS-17 contract, DMRC will be receive a total of 312 metro coaches (52 trains) for the Phase-IV priority corridors, i.e. Majlis Park to Maujpur, Janakpuri West to R K Ashram Marg and Tughlakabad to Delhi Aerocity. These trains will arrive in Delhi in phases over the coming days, it said. Out of the 312 coaches, 234 coaches are allocated for the extended sections of Pink and Magenta Lines, i.e. Majlis Park to Maujpur and Janakpuri West to R K Ashram Ma