hi,

arunachal university has both ba+llb 5 years course and also llb 3 years course.  for llb courses eligibility criteria is graduation in any discipline with 45% marks in graduation, for general category candidates, for sc/st candidates it is 40% in graduation.

however there is no mention of entrance exam in official website for admission. I would suggest you to directly contact with college for admission.

https://arunachaluniversity.ac.in/courses/bachelor-of-law-ll-b/