Hi Anubhav ,
Congratulations on your score!
580 is a very good score . You can get into the top government medical colleges through AIQ , except in Delhi perhaps.
These are some of the best medical colleges in India :
Institute of Medical Sciences Banaras Hindu University, Varanasi

Maulana Azad Medical College, New Delhi

King George's Medical University, Lucknow

University College of Medical Sciences, University of Delhi, Delhi

Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry

Institute of Post Graduate Medical Education and Research, Kolkata

Seth Gordhandas Sunderdas Medical College and King Edward Memorial Medical College, Mumbai

Government Medical College and Hospital, Chandigarh

Ganesh Shankar Vidyarthi Memorial Medical College, Kanpur

Sarojini Naidu Medical College

Motilal Nehru Medical College, Allahabad

Lala Lajpat Rai Memorial Medical College

Dr. Ram Manohar Lohiya Medical Institute, Lucknow

You can get these through state quota. 

Kgmc had 589 cutoff marks previous year. 

You can also apply to st johns medical college,  cmc vellore and manipal medical college.  These are excellent private medical colleges

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