Dear Arvind,

The eligibility criteria for CET BBA exam:

• To be eligible for the entrance exam, a candidate must have passed class 12 in CBSE or equivalent board with a minimum of 50 percent marks in aggregate. They must also have passed English as a core or elective or functional subject.
• Candidates who have appeared for the 10+2 board exams may also apply, only if they are able to submit the proof of candidature within the stipulated date. No candidate will be allowed to sit for the entrance exam without meeting the eligibility criteria set by the University. 

Hope it helps.

Good Luck.