Colleges in Gujarat

You have a good academic profile. 98 percentile on CAT will definitely enhance your chances of getting call from IIM-A. But IIMs calls based on students graduation field, academic/ work profile. To get calls from IIMs you must score atleast 98 percentile. Higher percentile will definitely enhance your chances of getting selected.

Eligibility:
Candidate must have passed 10+2 from a recognized board.
Admission Process:
Interested candidates can apply directly to the college. Please refer to the link provided below for furthers details regarding this course:
https://www.shiksha.com/animation/2d-3d-animation/course/bachelor-of-arts-in-vfx-and-animation-baav-arena-animation-Vadodara-178572.

Sorry, but it will be quite difficult for you to get into IIM-A and B. As C doesn't have a graduation criteria (i.e. zero weightage to graduation score) it would be your best shot. Additionally, I would not suggest you to go to any of the IIMs as then you would be competing for jobs with the best profiles of the country, and this might dilute your profile and competition. But, it is your choice at the end.

Your chances seem quite decent. I would suggest you use Shiksha's Call Predictor to get a better idea of what different CAT percentiles would do for your chances to get a call. By the way, NITIE and IIM A, B and C are quite different. NITIE has a much stronger focus on operations while IIMs don't focus at all on operations (even the roles in operations are quite limited).