Hello, the only thing required for neet is 50% aggregate in all the three subjects which are physics, biology and chemistry. If you have all of them then yess you can start preparing for neet and apply for neet 2021. And for mbbs seat it's not clear year since this years cutoff is not out yet but to be on a safe side if you score above 600 government college will be easier for you. I hope this helps.

Thank you