If you consider the infrastructure curriculum and the imparting standards of Education then I would say that Rai University will be better than Parul University for LLB programs. If you have an option then choose Rai University.

To know more you can visit the link provided below:

https://www.careers360.com/university/rai-university-ahmedabad/llb-course

I hope this answer helps. All the very best for your future endeavors!