When you look at questions, the level of KCET and COMEDK are both equivalent or tends to equivalent.
But, level of competition is higher in COMEDK than CET.
For example, if 2 students score 170+ out of 180 in CET, at least 5 students will score 170+ in COMEDK.
This is because the toppers from others states join the toppers of Karnataka to have a fierceful competition.
Whereas in CET, toppers of Karnataka alone are at the top.