Hello aspirant. To look out from outside, three of them are really good for general medicine. In terms of ranking, quality of education and all.. here would be the preference order.

1.kurnool medical college.

Education and faculty are good. More of practical knowledge as in practical sessions. But ragging will be comparatively high

2. SVIMS tirupati

Really good college with decent faculty and education

3. Gandhi

Go for this as 3rd option