If you are wiling to join the course of LLB, then you have to appear for a law entrance examination. Now in most cases, there is no upper age limit in most of the LLB admission entrances in India. So if you are at any age you can go for the course. For example, DU LLB have no upper age limit for there law entrance, so you can go for it as well.

For more information regarding the law entrance in India consider the link below:

https://law.careers360.com/

I hope this helps. Wish you a great day!