DPR of Delhi Metro Yellow Line extension approved; construction of Aerocity–Tughlaqabad Corridor begins, India August 18, 2020 | Asia Pacific News The state government of Haryana has approved the detailed project report (DPR) of an upcoming extension of Delhi Metro Yellow Line. This extension will span around 28.80 km and cover 27 stations (incl... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password