Hi aspirant,

With 126 Marks in neet you have less chance to get government bds college. You need to score more then 250 marks in neet to get a government bds college if you belong to SC catagory.

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, 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.