Well with 580 marks which is a pretty descent score you will be getting a rank of 2100-5000 with unreserved category and analysing bhu UR category cut off it might not be possible to get MBBS in bhu although if you wish to go for dental you will get that in dental

now your score is extremely good , with these you can get topmost govt college for your state and few colleges from ai quota although for ai quota nothing can be predicted.

also if you belong to a different category and belong to a specific state and want info regarding that comment below