Hi poojakhanduja3017,
The most realistic CATs available are the 6 from GMAC, retaking a CAT that you've already taken is NOT a realistic way to assess your skills - since you will likely see some 'repeat' questions that you have already faced. Unfortunately, seeing even a couple of repeats can 'throw off' the Scoring Algorithm and impact your pacing, energy levels, fatigue, etc. (meaning that they would likely all appear to be better than they actually are). Thankfully, the CATs from Kaplan,
MGMAT and Veritas are all 'close enough' to the real thing that they will provide you with a relatively realistic score assessment (assuming that you correctly take the CAT in a realistic fashion) - so you can use any NEW CATs from any of those sources next.
From your profile, you appear to have taken the Official GMAT at least twice - and received similar Scores on the two attempts. If you're looking to score at a much higher level, then you'll have to do far more than just take a number of additional practice CATs. "Your way" of approaching the Exam has earned you two almost-identical Official Scores in the high-600s - so it's likely that if you continue to approach the training process (and Test Day itself) in the same ways as before, then you will end up with a similar Score. This is meant to say that you might need to make some adjustments to how you "see" (and respond to) the Quant and Verbal sections.
Before I can offer you any additional advice for your studies, it would help if you could provide a bit more information on how you've been studying and your goals:
Studies:
1) On what dates did you take EACH of your Official GMATs?
2) How long have you study for each attempt?
3) What study materials have you used so far over the course of all of your studies?
4) 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:
5) What is your overall goal score?
6) When are you planning to apply to Business School and what Schools are you planning to apply to?
You might also choose to purchase the Enhanced Score Report. While the ESR doesn’t provide a lot of information, there are usually a few data points that we can use to define what went wrong on Test Day (and what you should work on to score higher). If you purchase the ESR, then I'll be happy to analyze it for you.
GMAT assassins aren't born, they're made,
Rich