In kcet councelling is we need to enter college choices?

Hello aspirant!!
Yes you need to select the colleges which you prefer during the counseling. You will be getting the college out of the selected colleges. If your rank won't eligible for those colleges then you may not get seat. So carefully select the options. So that you can ensure a seat without difficulty. First predict the college you are eligible for using below links and check the possibly of getting seat in your interested colleges.
https://www.careers360.com/kcet-college-predictor

Hope this was helpful!!