If you have PCB combination in your 10+2 and if you have secure 50% marks in 10+2 (if you are UR then 50% else 45% for SC/ST/OBC) then you are eligible for the NEET. If you want to apply for the examination, then you have to appear as a Dropper and the NEET code for dropper candidates is 02. You will be not provided any credit for your BBA from the perspective of the examination.

For more information regarding the NEET codes, visit the link below:

https://medicine.careers360.com/articles/neet-qualification-codes

I hope this answer helps. All the very best for your future endeavors!