Hi MayurAhuja,
To start, since you're ultimately asking Admissions questions, you would likely find it beneficial to speak with an Admissions Expert about your overall profile and plans. There's a Forum full of those Experts here:
https://gmatclub.com/forum/ask-admissio ... tants-124/Unfortunately, until you have an Official GMAT Score, there will probably be a limit to how accurately an Admissions Expert could predict your chances of getting into any particular Program. That Exam Score is an essential part of the application process at most Schools, so if you're serious about applying to Business School, then you're going to have to take the GMAT.
You have at least 4 weeks of potential study time before either of the application deadlines that you listed, so you could still improve on your current practice scores. 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) How many hours do you typically study each week?
2) What study materials have you used besides the course that you mentioned? What 'brands' of CATs/mocks have you taken?
3) On what dates did you take EACH of your CATs 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