Hey Mitesh.

As you have already completed your Undergraduation in Engineering and now you want to pursue Law further, you should go for a 3 year LLB course from any recognised University. LLB is a general degree in Law there is no scope or requirement  of specialisation in any area of law the LLB degree itself. If you wish to specialise further you can pursue a 1 year or 2 year LLM course after that.

For admission in LLB there are separate entrance tests or admission procedures in different universities. The most sought after entrances are- DU LLb, MHCET, SLAT, PULLB, BHULLB, BVP LLb TSLAWCET etc.

Best of luck!