Hello aspirant ,
I am here for helping you .
Learn " life include abundant opportunities , if ones you fail , means you are going to have opportunity for which you  born "
As per your doubt my research says that your chances of getting admission in good law colleges are very low now you have following options:
1. You can do BBA from any college and then LLB later with having good percentage in BBA degree.
2. You are not fulfilling eligibility criteria for some of the law entrance exams but still you can give CLAT exam which you will have to give next year so, you can drop and can prepare for it and can be eligible to have admission in top law colleges:
Link is given below where you can know all about CLAT exam about eligibility criteria also:
https://law.careers360.com/articles/clat-eligibility-criteria
3. You can do your course from any of the college which will not rank good.
I am shairing you a link below which may also help you to specify your course:
https://law.careers360.com/articles/9564-law-entrance-tests
I hope it will be beneficial for you........
For more queries you can upvote me and can ask in the comment section.......
Best of luck........

Hello Aryan,
The eligibility criteria for BBA LLB:-
Applicants must have qualified 10+2 examination with Science, Commerce, Arts and Humanities. They must have secured a minimum of 60% marks in Science and Commerce group along with 55% marks in Arts and Humanities for BBA LLB programme.