Hi abhi780,
Before I can offer you the specific advice that you’re looking for, I'd like to know a bit more about how you've been taking your CATs:
1) Are these the only two CATs that you've taken? If not, then how have you scored on each of your CATs (including the Quant and Verbal Scaled Scores for each)?
2) Did you take the ENTIRE CAT each time (including the Essay and IR sections)?
3) Did you take them at home?
4) Did you take them at the same time of day as your Official GMAT?
5) Did you ever do ANYTHING during your CATs that you couldn't do on Test Day (pause the CAT, skip sections, take longer breaks, etc.)?
6) Did you ever take a CAT more than once? Had you seen any of the questions BEFORE?
GMAT assassins aren't born, they're made,
Rich