Can I get any IIT or nit at 89.26 percentile in cat? Fresher GEM 10th 88 12th 81 Btech 70 %

I don't think its possible as per the information you have provided, However keep working hard and try next time, you are just a fresher, there is ample possibilities to improve. Good luck!!!

IIT Jodhpur, IIT ISM Dhanbad, and another NIT