Hello, 

As per your requirement, i would say that for admission into private medical college in karnataka being a non karnataka student you need to qualify the neet exam and havr a percentilr according your category and apply only in the aiq counseling. 

Marks are not specify for private collegr as the low Mark students can easily get admission but the fees remains really higher.

The cutoff scores of NEET 2019 has been increased by 15 marks for each category. NEET cutoff percentile for the general category is 50th percentile, while the corresponding marks have been declared as 701 to 134. The cutoff for SC/ST/OBC category (40th percentile) is 133- 107 and for unreserved PwD candidates (45th percentile) it has been announced as 133- 120. 

Please check out, 

https://medicine.careers360.com/articles/neet-cut-off

Good luck