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The Kaveri Express is named after the sick river "Cauvery" that goes through Mysore area and passes by Srirangapatna. This bad boy first came into scene in the late 70's and early 80's as a daytime ride from Mysore to Bangalore in that old Meter Gauge era. Even after the switch-up to Broad gauge, this train kept on rollin' with the names Kaveri-Tippu and Chamundi rollin’ through the cities. In '97, they split the Banglore-Trichy/Madurai link with Trichy routing to Mysore, departing Bangalore at 5 AM and hittin' Mysore at 7:45 AM. The Madurai line got to Bangalore by 8 AM.
Fast forward to December '97, they dropped a Daily Special between Bangalore and Chennai for the winter, linking up with the Kaveri Express timings. (7 AM outta Bangalore-10 AM Mysore, and 6 PM back to Bangalore by 9 PM). The next move was extending Kaveri all the way to Chennai, switching seats for bunks, but the schedule in the Bangalore-Mysore area stayed the same.
In '99, the gauge switch-up from Trichy to Tanjore got the Trichy Express rolling all the way to Tanjore. In 2001, the Bangalore-Madurai Express got lengthened to Tuticorin. The times changed a bit, with the trains moving earlier and later accordingly.
Around 2003, the Madurai Express got hooked up to Mysore, keeping the same schedule 'til Bangalore. The old 16231/32 slot to Mysore got snatched up when Kaveri got the new schedule for Bangalore-Mysore run. Since 16732 took up Kaveri slots, they rerouted Kaveri to leave Mysore at 8 PM, a routine they still stick to today.
Thanks for listenin', y'all!

Legendary train ko LHB mein upgrade karna padega.