Hello dear student

The eligibility for  apply  the DU JAT exam must have qualified/cleared Class 12 examination of any board/university exam in India or equivalent to the 10+2 system by the Association of Indian Universities (AIU) so you must be clear 12th Examination than you are eligible for examination.

you can visit the link for more information regarding ELIGIBILITY of exam.

https://bschool.careers360.com/articles/du-jat-eligibility-criteria

Hope that's helpful

Best of luck