Punjab Mail, the oldest train in Indian Railways will step into its 110th year on June 1, 2021.  Passenger train services were suspended during the Covid-19 lockdown from March 22, 2020 and gradually the services were reintroduced as special trains after unlock from May 1, 2020.  However, Punjab Mail special began its journey with LHB coaches from December 1, 2020. German-designed LHB coaches have improved suspension system with more riding comfort having a designed speed of 160 km/h that could go up to 200 km/h.

The origins of the Bombay to Peshawar Punjab Mail are rather unclear. Based on a Cost Estimate paper circa 1911 and a complaint by an irate passenger circa October 12, 1912 about the 'late arrival of the train by a few minutes at Delhi,' it has been more or less inferred that the Punjab Mail made her maiden run out of Ballard Pier Mole station on 1 June 1912.