Hii!
The eligibility criteria to pursue BBA LLB course states that the candidate must have passed class 12th with minimum 50% marks in any Subject stream from a recognised Board of education. However, Commerce students are preferred.
The link given below may help you with more information-

https://www.google.com/amp/s/www.careers360.com/courses/bba-llb-bachelor-of-business-administration-bachelor-of-law/amp

Hope this helps.
Good luck!