Hi aspirant,

With 254 marks you have no chance to get government bams colleges in karnataka even you belong to OBC catagory. You need to score 420 to 370 marks to take a government bams colleges. This information is based on previous years cutoff and the cutoff marks change every year. It's depends upon number of students that appeared in examination, number of seats available in colleges, difficulties of question paper, reservation catagory, previous years cutoff trends, etc. And this year cutoff goes very high. So more information you can use neet college predictor to know which college you may get with your marks. That is mentioned below:-

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

Hope this helpful. Best of luck.