COVID-19: THESE routes of Delhi Metro to get additional coaches to avoid over-crowding Currently, the Delhi Metro has a fleet of 336 trains sets comprising 181 six coach trains, 133 eight coach trains and 22 four coach trains. File photo Updated: Apr 5, 2021, 08:44 PM IST The Delhi Metro Rail Corporation (DMRC) on Sunday (April 4) announced that it will be adding more coaches on major lines. This move can help prevent overcrowding in coaches as the country battles a sudden surge in COVID-19 cases. DMRC in its official announcement said that the 6-coach trains will be converted into 8-coach trains on the Red line (Rithala to Shaheed Sthal New Bus Adda), Yellow line (HUDA City Centre to Samaypur Badli) and Blue Line (Dwarka Sec-21 to Noida Electronic City/Vaishali) of the Delhi Metro network.