Hi Aashish,
Given your Scaled Scores on these CATs, and your score goal, you'll likely need to make some adjustments to how you handle BOTH the Quant and Verbal sections. With 6 weeks, you can still do a lot of studying and make some big improvements, but you're going to have to learn to 'see' (and respond to) the GMAT in different ways. If you keep dealing with the GMAT in the same way that you're dealing with it right now, then I would expect that you would score right around 600 on Test Day.
I think that the EMPOWERgmat Total Score Booster would help you considerably. Most of our clients complete that Study Plan in right around 6 weeks of time, so it would fit your timeframe. 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