Hi swanidhi,
First off, a 560 is a solid first CAT score (the average score on the Official GMAT hovers around 540-550 most years). Since Test Day is a rather specific 'event', and your Test Day is in a month, I'd like to ask a couple of questions about how you took this CAT:
1) Did you take the ENTIRE CAT (including the Essay and IR sections)?
2) Did you take it at home?
3) Did you take it at the same time of day as your Official GMAT?
4) Did you ever do ANYTHING during your CAT that you couldn't do on Test Day (pause the CAT, skip sections, take longer breaks, etc.)?
Many Test Takers spend 3 months (or more) on their studies before they hit their 'peak' scores, so it's likely that you just have not put in enough study time yet. Considering your score goal, you would have to improve by 140+ points in just one month, which is not likely to happen. As such, you probably have to consider pushing back your Test Date so that you can continue to study and improve.
GMAT assassins aren't born, they're made,
Rich