how many mark required to obtain the medical college of Mumbai

You haven't mentioned the Medical college that you are enquiring for. There are a lot Medical colleges both private and government in Mumbai. And the cutoffs for those colleges are different. The cutoffs also depend on the category of the student which you haven't mentioned. So considering you as a general category candidate, and going by last year's cutoffs, 604 was the cutoff score for Grant Medical College Mumbai, 598 was the cutoff score for HBT Medical College, 611 for Lokmanya Tilak Municipal General Hospital, 644 was the cutoff score for Seth GS Medical College Mumbai, 542 for Terna Medical College under state quota. These cutoffs keep changing every year as these depend on various factors. You can check out this link for the cutoff of all Medical Colleges of Maharashtra http://medicine.careers360.com/articles/neet-cutoff-maharashtra To help you with your preparation in Neet, Careers360 has come up with Neet knockout package http://learn.careers360.com/knockout-neet-may/