Hello aspirant!
First of all congratulations for your score.
The cut off of karnataka is usually 480-500.
So the chances are quite low in a govt college. But there is no harm in trying so please try..or else go for a private college.
You can take an idea from this link-
https://www.careers360.com/question-i-have-got-3230-karnataka-state-rank-by-450-ranks-in-neet-can-i-get-gvot-medical-college-in-karnataka-in2a-obc?icn=question-title-details&ici=topic-detail-page
Hope this helps!