Vaigai SuperFast is fondly referred to as the "King of Southern Railway"; and its rake sharer Pallavan Express "Prince of Southern Railway" running between Chennai Egmore and Karaikudi Junction are collectively known as the "Chord Line brothers".

135 Vaigai Express began its inaugural journey from Madurai Junction to Madras Egmore, with 16 yellow and green livery coaches and a matching YDM4 diesel loco.

On that day, the train clocked the fastest run between the two locations, in 7 hours and 15 minutes, entering Madras Egmore at 1:05 p.m. that afternoon.

[5] On 3 March 2022, the Vaigai Express train made a historic record by covering a distance of 495 kilometres from Madurai to Chennai in 6 hours and 40 minutes.

This record was broken once more on 15 October 2022, when the train covered the distance from Madurai to Chennai in 6 hours and 34 minutes.

For the first time on the MG, the ICF manufactured two 40-seat AC chair car coaches exclusively for the Vaigai and Pallavan express and used in those trains.