Hi,

According to the eligibility criteria for KCET 2021, students who have done their 12th from Karnataka can appear for KCET. Also, the student must have obtained an aggregate minimum of 45% marks in the optional subjects in the qualifying examination (40% in case of SC, ST, Category-I and OBC (2A, 2B, 3A and 3B) category candidates) .There is no difference between the eligibility criteria between PUC or CBSE students.

You can refer to this link for more details: https://engineering.careers360.com/articles/kcet-eligibility-criteria#:~:text=Candidates%20should%20have%20studied%20and,Karnataka%20for%20a%20minimum%20period

I hope this helped you.