With a rank of 4622, getting MD Medicine through AIQ is very difficult as closing ranks are much lower. Under Maharashtra State Quota, you have a borderline chance in government colleges and a good chance in private colleges, since the cutoff has gone up to ~20,000. If you are flexible, you can definitely secure a seat in semi-government/private medical colleges. DNB Medicine is an excellent option too—widely available, equivalent to MD, and feasible at your rank. Keep both state quota MD and DNB Medicine in your preference list for best chances.