I think you are asking if with 512 score, is it possible to get a medical college (as per your profile) in Andhra Pradesh (as per the tag in question) via BCD Reservation (if I am wrong, then please state in the comments). To answer this, let us first look at NEET UG 2020's Cut Off -

For Government Medical College (via BCD Category) -

• Cut off Marks - 531/720
• College Allotted - Rajiv Gandhi Inst of Medical Sciences Kadapa, Srikakulam

For Private Medical College (via BCD Category) -

• Cut off Marks - 495/720

So, with 512 marks, it is difficult to get a Government medical seat. However you can definitely get a Private Medical Seat. To know what all colleges you can get with your score and rank, use NEET College Predictor - NEET College Predictor 2021 - Predict Colleges based on your Rank (careers360.com)