You need a score of atleast 99 for the afore mentioned colleges. All the best.

Hi,

 For aiming  at IIMs you must focus on achieving above 90 percentile in CAT . Only then you'll be getting calls from various IIMs . However if you are aiming for IIMs like Ahemdabad and Bangalore you must aim at scoring above 95%

HI rakshitha

If you are able to score a very high percentile like 99.7+ then you
will have a good probability of getting called for the second round of
WAT and interview from top 3 IIMs i.e. IIM Ahmedabad, IIM Bangalore, IIM
Calcutta. If you are able to score above 98+ percentile you will have a
good probability of getting calls from other old IIMs like IIM Lucknow,
IIM Kozhikode, IIM Indore, IIM Shillong and with 95+ percentile you can
definitely get calls from all the new IIMs and ultra new IIMs

good luck