Dear Rajkumar,

The exact answer for this question is not possible due to massive fluctuations between cutoffs from different years but you can estimate the score requiredd by using the following tools-

https://www.careers360.com/result-predictor

and 

https://medicine.careers360.com/neet-ug-college-predictor

Since you hail from a reserved category and belong to a state with many goverment medical colleges you have an edge and a pretty good chance for governement medical college. 

Apart from that  450+ is Actually a pretty good mark for deemed or private medical colleges. you must use the predictor tool to understand where you stand.

All the best Rajkumar!