Hello aspirate 

According to last year cut off the minimum marks required for bds government medical college was 246 marks and 265391 rank for SC candidate and since your marks are lower than it you have less chances of getting government college. 

Use Neet college predictor to predict the college according to your rank

https://medicine.careers360.com/neet-college-predictor

To know details on karanatka neet cut off use the link below 

https://www.google.com/amp/s/medicine.careers360.com/articles/neet-cutoff-karnataka/amp

Good luck