Hi krishhxa.

I am not that familiar with the e-gmat SC module, but I can say this.

No book or program is exactly sufficient for mastering SC. Mastering SC takes not just learning about it from some resource but also developing certain skills and eye for key details.

I don't mean to put down any resource. The ones you mentioned may be very helpful. My point is to make clear that in order to master GMAT SC you have to get good at playing what can be a fairly sophisticated logic game, and all too often people go into the project thinking that all that they have to do is learn a bunch of simple rules and strategies and they will be set, when that is not really correct.