At GIBS Business School, scholarships for PGDM are given based on entrance exam performance, including CAT. Usually, if you have a CAT score above 70–75 percentile, you become eligible for a scholarship. The higher your percentile, the better the scholarship amount you can receive. For example, students scoring above 80–85 percentile often get higher scholarships.
So, if you are preparing for CAT, aiming for at least 75 percentile or above will give you a good chance to secure a scholarship at GIBS along with admission.