There are below given colleges in Delhi and these are considered to be the best colleges in India and they all provide admission through state (85%) and AIQ (15%).

Maulana Azad Medical College

Lady Harding Medical College (Only for Girls)

University college of Medical Science

Vardhman Mahavir Medical College

North Delhi Municipal Corporation

Dr. Baba Saheb Ambedkar Medical College

Also, there is nothing declared for NEET 2018 cut off but in previous year the closing rank for BSAMC was 5547 so the marks range should be 575+ and if you talk about MAMC then the closing rank was 1163 and marks were 620+. Apart from this, VMMC has few seats available for outside Delhi candidates but the cut off would be high for this particular category. And it is quite difficult to get seat in Delhi Medical colleges with 450 marks, you will have to increase your target so plan and prepare accordingly so that you can get your goal accomplished.

Hope this helps!!!