Hi mangamma,
Assuming that you took these CATs in a realistic fashion that matches up with what you'll face on the Official GMAT, then you are closer to a 650+ than you probably realize. The
MGMAT CATs are generally regarded as being a little tougher than the real thing, so your current 'ability level' might actually be higher than these recent CAT Scores suggest.
Before I can offer you the specific advice that you’re looking for, it would help if you could provide a bit more information on how you've been studying and your goals:
Studies:
1) How long have you studied? How many hours do you typically study each week?
2) What study materials have you used over the course of all of your studies?
3) On what dates did you take EACH of your CATs/mocks and how did you score on EACH (including the Quant and Verbal Scaled Scores for EACH)?
Goals:
4) Is your Score Goal 650 or something else?
5) When are you planning to apply to Business School and what Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich