There are no such online LLB courses. Some of the universities offers the distance course of LLB or part time LLB courses but pursuing this degree you can't enroll yourself under the Bar council. So if you have the intention to practice the law in court, then doing the offline/full time LLB program is necessary.

The top 3 years LLB entrances one can appear for are provided below:

For more information regarding LLB as a career, consider the link provided below:

https://www.careers360.com/courses/llb-bachelor-of-legislative-law

I hope this helps. Wish you a great day!