Hello Vinaybhyarada , Only with marks in neet it is impossible to predict college in any state. For predicting college you need category and marks or rank and if you don't know your rank then use:

After predicting your rank.

You can predict college in karnataka from here:
https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer

Hope it will be helpful for you :)