Manish-
I'm sure when you were able to get 600 by studying a month, you can achieve your goal by March. I haven't taken GMAT yet, but I know somebody who took it. In terms of quant, I think getting those probability questions makes a big difference, at least can push you from 42 to 47. I'm not kidding,I have seen people who have improved that much. So, if in this two months you work on them, you can beat the quant.
In terms of verbal, I want to ask you something. Did you run out of time. Which material you used??? Did you practice any tests? If so what are they and how you did.
If you can assess what your weaknesses are, you can deal with them better. I want to say NEVER GIVE UP. Keep going and remember when there is a will, there is a way :)