Hello,
The admission to government medical colleges is based on NEET marks is done under two categories-All India quota(15%) and state quota(85%).
So it varies greatly with state, for states like Karnataka it is low and for states like Rajasthan it is much higher.
However generally for general 530+, for OBC 470+, for SC 400+ and for ST 370+ marks will get you a decent government college in your state through state quota.

Follow this link for more:
https://medicine.careers360.com/neet-college-predictor
Good Luck!