Hi Neha,
First of all there is no need to press the panic button as things would go worse than becoming any better. Have already taken the date.? If yes then the best thing you can do in order of priority and with time permits.
a) Go over your weak areas and develop a strategy for each of the question type, pattern, it could be as simple as - "Iam going to do an intelligent guessing when i see combinatorics + probability probelm" . I am going to note only the high level points for a long passage and not give more than 3 mins for the initial read in case of long passage.
b) It seems your quant socre is decent, you need to focus on verbal. Unfortunately its hard to raise your score in verbal. I would suggest focus on SC and CR and try to increase your accuracy in SC with the time frame you have. Revise your error log, parallelism constructs, comparisons chart, subjunctive, misplaced modifiers as these are some of the areas on which SC is tested the most. Similarly focus on weaken and strengthen CR question as they form 60-65% of CR questions.
c) Go over your strong areas and make it rock solid, it sounds odd, but you should make it a point not to loose any point even at 700 level in your strong areas.
d) check how are you doing on your pacing. Just by focussing on pacing alone, one can raise 10-15 points if not more. Know when to leave a question and move ahead. This again seems odd, but it is very imp and you should practice your next 2 CAT with this at the back of your mind. Remember by doing so, you are not loosing but giving yourself a chance to score more on your strong areas.
Let us know how you r doing...All the very best!