Hello student, 
With a score of 643, you have chances of procuring a seat in MAMC when comparing the results of previous years. The cutoff last year at MAMC was 603 for Delhi domicile unreserved category. But, one thing to keep in mind is that scores and ranks vary each year with difficulty level of the question paper and availability of seats.

Hello,
Congratulations
Yes,
Hello,
If I consider the previous year data .Then he has very good chances of getting admission maulana azad medical college in delhi through state quota .
Last year the cutoff for delhi quota with corresponding rank was.
General- 1,163 623
OBC- 8,846 560
SC- 34,394 479
ST- 1,33,587 337
Browse the link given below for detailed information.http://www.careers360.com/question-mamc-medical-college-cut-off-in-2018
Best wishes and luck

Maulana Azad Medical College

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