Hi aspirant,

With 320 marks you have little chance to get government seats in karnataka under state quota if you belong to SC catagory. It's quite difficult to predict that whether you will get  seat or not as  cut off marks for medical colleges keeps changing every year  depending upon various factors like  number of students that appeared in the exam, number of seats and difficulties of question paper.

Candidates who belong to SC catagory required 330 to 340 marks to get government seats through state quota as per last year of cutoff. For more information You can check neet college predictor link given below.

https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer

Hope this information will help you. Best of luck