LL.B. can be pursued in the following two methods:
1. After 10+2 you can pursue a 5 year integrated course such as B.A. LL.B. or B.B.A. LL.B.
2. After completion of graduation in any stream pursue 3 year LL.B.
Henceforth, there is 5 year integrated course of LL.B. and a 3 year stand alone programme.
There is no such difference between the two but 5 year integrated LL.B. saves one year on the other hand 3 year LL.B. gives you freedom to choose the graduation stream.
1 year LL.M. has also been recently introduced which is much more rigorous than 2 year LL.M. programme. However, there is no such difference between the two.