Delhi Metro Rail Corporation has upgraded the Blue Line to enhance speed, capacity and passenger comfort across one of the city’s busiest corridors. The improvements include new trains with advanced signalling, increased frequency, upgraded stations and enhanced safety systems. Carrying over 1.5 million daily passengers, the line connects key areas from Dwarka to Noida/Vaishali, and the upgrades are expected to reduce congestion, improve travel time and support sustainable urban mobility.