The Delhi Metro Rail Corporation (DMRC) is set to upgrade 70 trains on the Red and Blue Lines by November 2027 as part of a phased refurbishment plan. These trains, which have been in service for 19 to 24 years, will undergo significant upgrades to meet modern standards, enhancing passenger safety and comfort. The refurbishment will be executed in three phases, with 31 trains already completed. Key improvements include the installation of IP-based Passenger Announcement and Information Systems, CCTV systems, and LCD-based Dynamic Route Maps. Additionally, a new fire detection system will be implemented, along with upgraded electrical panels and charging points for passengers. DMRC aims to ensure that these older trains remain reliable and equipped with the latest technology for a better travel experience.