Hey dear, cutoff varies every year, if you see the last year cutoff which went very high that even students getting 500 marks were unable to get a govt. Mbbs seat. So, with 310 marks there is no chance sfor getting mbbs govt. Seat for sure, although you can go for bams and bhms. You can also use college predictor through this link:

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