Hey.
Here is a list of all government medical colleges im Karnataka and their respective cut offs in the previous years for the SC category under the State quota. Considering this you would require a score around this range for a  fair chance of admission here.

Raichur Institute of Medical Sciences, Raichur 
1,48,439  322 
Shimoga Institute of Medical Sciences, Shimoga  1,29,309  341
  Bidar Institute of Medical Sciences, Bidar
  1,13,064  358
Hassan Institute of Medical Sciences, Hassan  1,28,504  342
  Mandya Institute of Medical Sciences, Mandya  1,14,220  357
Belagavi Institute of Medical Sciences, Belagavi   1,40,968  329
  Karnataka Institute of Medical Sciences, Hubli   97,359  377
Vijaynagar Institute of Medical Sciences, Bellary 1,07,668  365
Bangalore Medical College and Research Institute, Bangalore
  67,424  418
Gadag Institute of Medical Sciences, Mallasamudra, Mulgund Road, Gadag 
1,80,597  295
Koppal Institute of Medical Sciences, Koppal   1,57,215  314
Employees State Insurance Corporation (ESIC) Medical College, Bangalore  1,32,392  338 
Kodagu Institute of Medical Sciences, Kodagu   1,64,743
Chamrajanagar Institute of Medical Sciences, Karnataka  1,54,210  317  
Karwar Institute of Medical Sciences, Karwar  1,81,760  294
Gulbarga Institute of Medical Sciences, Gulbarga  1,34,987  335 
Government Medical College, Mysore  79,958  400