Hi prnvprem,
Before I can offer any advice, I'm hoping that you can clearly define your timeline and goals:
1) What is your goal score? You gave a 'range', but that's not what I'm asking for. What score will make you happy?
2) When are you planning to apply to Business School?
3) Do you know what Schools you plan to apply to?
As far as your studies are concerned:
1) Is this the ONLY CAT that you've taken?
2) Did you take the FULL CAT (including the Essay and IR sections)?
3) What materials have you been studying with so far?
GMAT assassins aren't born, they're made,
Rich