Yes, you can get admission at GIBS Business School with 60% in Class 12th. For the BBA program, the main requirement is completing 12th from a recognised board with at least 50% marks, so 60% is more than enough. For the PGDM program, the requirement is 50% in graduation along with a valid entrance exam score.
So with 60% in Class 12th, you are definitely eligible to apply for BBA at GIBS. It's a good option if you want quality education, practical exposure, and great campus life.