Hello,

There are a total of 16 government medical colleges in Karnataka. 
I'm mentioning the Names and cut off marks of the top 5 among them, you may refer to the link below for the details of the rest of the colleges. 
Here are the top 5 -
Bangalore Medical College and research institute, Bangalore - 512
Karnataka Institute of Medical Sciences, Hubli - 455
Mysore Medical College, Mysore - 443
Belgaum Institute of Medical Sciences, Belgaum - 428
Vijayanagar Institute of Medical Sciences, Bellary - 428. 
Here is the link to the cut offs of the other colleges-
https://medicine.careers360.com/articles/neet-cutoff-karnatka