For the govt. medical or dentle college one must have to score 450+ marks for the admission. The admissions will be based on NEET 2019 are based on the merit rank and cutoff marks for the various colleges and institutes. The link is attached where you can find the cutoff marks for the various govt. medical and dental colleges through all india quota.

https://medicine.careers360.com/articles/neet-cut-off-for-government-colleges