On a crisp December morning, a familiar train rolled into Delhi Metro stations carrying far more than passengers. TS-01—the very first train that marked the capital’s entry into the era of modern mass transit—quietly completed 23 years of service, reminding the city how far its daily commute has come since 2002. Still very much in active duty, the train marked the milestone with a special commemorative run, recreating the route where the Delhi Metro’s journey first began.