Dear applicant it is very overwhelming to get to know about CAT Score. But as you know Institutions bearing IIT Tag has higher cut off compared to others. But yes compared to other IITs, IIT Roorkee has less requirements but that also doesn't go below 80-85 percentile. So with 61.08 percentile you better try for some other good private colleges where you can explore your career goals, rather than solely focussing on IITs. Because of your category you still try for IIT Roorkee, considering their vacancy matrix and you may get a seat.

Good luck!!