Hello student yes you're eligible for ballb 5year course as there's no upper age limit you need to appear in entrance exams like clat and ailet to get admission in top law college.

You can also click on the link mentioned below for more information about clat

https://www.google.com/amp/s/law.careers360.com/articles/clat-important-dates/amp

Feel free to comment if you have any doubt

Good luck