Delhi Metro to upgrade 70 trains on Red & Blue Lines by November 2027
The DMRC has set a target to upgrade 70 trains operating on the Red and Blue Lines in a phased manner by November 2027. According to DMRC, these trains, inducted between 2002 and 2007, have completed around 19 to 24 years of service and are being refurbished with modern systems and features to meet the latest rolling stock standards.