Hi sateesh611,
You could potentially make some significant improvements to how you handle the Verbal section in the time that you currently have - but the degree of that improvement will depend greatly on how 'flexible' a thinker you are. If you can learn and practice the proper Tactics, that you might find it relatively easy to pick up a bunch of points in the Verbal section (simply be learning to 'see' - and respond to - the Verbal section in different ways). That having been said, if you've developed any 'bad habits' during your prior studies, then it might take longer to fix all of those issues (and replace the bad habits with new 'good habits').
Given everything that you have described, I think that you would find the EMPOWERgmat Verbal Score Booster to be quite helpful. Most of our clients finish that Study Plan in under a month, so it could fit your schedule. During that time, you'll also be able to access any of the Quant resources that interest you. We have a variety of free resources on our site (
www.empowergmat.com), so you can 'test out' the Course before setting up an account.
If you have any additional questions, then you can feel free to contact me directly.
GMAT assassins aren't born, they're made,
Rich