You need a minimum of 50% to do BBA in Graphic Era university so yes you are eligible.
Admission Procedure: Merit of the Qualifying Exam followed by an interview.
For course details go here: http://www.geu.ac.in/under-graduate-programmes/bachelor-of-business-administration
TIPS for BBA:
In college just make sure you maintain the minimum attendance required, have good interaction with your seniors and do some internships to support your knowledge in BBA.
Thank you. 🙂