Would that be Undergraduate course or Post Graduate course? Can you help us with that please? And do you have any entrance exam in mind or any University that you want to take admission in? Please do let us know.

Hi,
For doing law,(LLB) course ,the basic eligibility criteria is to get 50% marks in class 12 examination from a recognised board or equivalent.
For taking admission in the course you can appear for CLAT exam by which you can get admission in many renowned law colleges in India.
You can even get into law course by getting a good percentage in class 12 and the cutoff depends upon the particular college or university which takes admission on the basis of class 12 examination.
Many Universities conducts their own entrance test for the admission. It depends upon the college/university you prefer.
You can refer to the following article for CLAT exam information:
https://law.careers360.com/exams/clat

Best Wishes