If kcvl train terminates at Bangalore, we will get odd timings. It would be better if it goes to SR somewhere. Even a Kannur Chennai express via MAJN, Hassan, Mysore, Bangalore, Katpadi.
Existing kcvl UBL was originally proposed via Kerala, MAJN, Hassan. But not succeeded. Similarly, MAQ Hyb express was proposed via Hassan Chitradurga Ballari. This also failed.