Hi amritakeswani,
You're clearly interested in some specific sub-set of SC, but it's possible that there are other, larger-point areas that you need to work on. The last time we discussed your studies was back in mid-March - and you were planning to take the GMAT in May.
1) Did you end up taking it (and if so, then how did you score - including the Quant and Verbal Scaled Scores?)?
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)?
GMAT assassins aren't born, they're made,
Rich