Delhi Metro commences trial on Red and Violet Line extensions; launches common mobility card, India August 27, 2018 | Asia Pacific News Delhi Metro Rail Corporation (DMRC) has commenced trial runs on extensions of the Red and Violet Lines. The Red Line extension spans 9.41 km from Dilshad Garden in Delhi to New Bus Adda in Gh... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password