Male engineer with 89% in CAT if I had applied last year what institutes would I be eligible for

Quite difficult to say. Male Engineers face steep competition, and low percentiles could make it troublesome to get into your desired college. Admissions largely depend on your profile - furthermore, the specific institutes you would have been eligible for would also depend on your category (General, OBC, SC/ST, etc.). It's advisable to refer to the official websites of the institutes you are interested in to get accurate and up-to-date information on their admission criteria and cutoffs. We had created this video to help aspirants get an idea of the colleges they can target given a specific percentile range: https://www.youtube.com/watch?v=kUfyTBlaV1U