Hello Aspirant,
See cut-offs are those marks or rank from which admission of any candidate is decided in any particular college. Cut-offs are to be decided by the exam conducting authorities and in the case of KCET it is Karnataka Examination Authority (KEA). As you have asked for cut-off increment so it depends upon various factors like number of candidates appeared for exam, number of qualifying candidates, difficulty level of exam and so on.
As for this year it is very uncertain to predict anything because the cut-offs are not released yet but however I would recommend you to go through the Previous year's cut-off to get an idea of it's variation, previous year's cut-off can be checked from the link given below :-
https://engineering.careers360.com/articles/kcet-cutoff
You can also use KCET College Predictor to predict your college :-
https://www.careers360.com/kcet-college-predictor?icn=KCET_clgpd&ici=KCET_article_view_sticky
I hope this information helps you.
Good Luck!!
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