The Grand Trunk Express

This train, affectionately known as the 'GT' started running in 1929 just after the construction of the Kazipet-Balharshah section, which was the last link in the Delhi-Madras route. Initially it ran from Peshawar to Mangalore and took about 104 hours, one of the longest train routes. Later this service was changed to Lahore-Mettupalaiyam. In 1930 it reached its present status while running between Delhi and Madras.
As a prestigious train, it was one of the few to have the early methods of air cooling by ice blocks. It also carried a parcel van for urgent consignments. In the late 1960s and early 1970s, the train used to run with a completely air-conditioned rake (First AC and AC Chair Car) on two days of the week, and with its usual rake on other days, and hence was sometimes known as the AC/GT Express. The train had a 21-coach rake in the 1980s, later extended to 22 and finally 24 coaches. Its first-class coaches were of the corridor type with extra large windows. The GT's coaches (along with those of other premier trains in the 1970s) also had noticeably better suspension as well.