There are many private Institute to pursuing 5 years law programme after 12th. But If you want to get admission in NLUs & top law colleges Then I would suggest you to go for the entrance exams for the same.

There are National Level 5 Years Law entrance exam you can apply

CLAT- National Level Exam, 14 National Law Schools.

AILET- NLU Delhi

The Eligibility to apply: You should have minimum 45% as a General category & 40% as a reserved category in Class 12th.

For further information you can go through with given below link.
CLAT 2018
AILET

Good Luck!

Dear Shubham
In careers 360 website, you can find so many colleges and also with 5 years one too. After going through careers 360, I suggest you to go through the different websites like collegedunia, Shiksha etc..,
All the best.

There are many ...you can check those in google and careers 360 app.

There are many universities which offer 5 year program check it on career 360

Dear

There are many universities those offer 5 years integrated Programme in law that you can start after 12th and options are

NLU
IP University
Symbiosis
BHU
AMITY university
Op jindal

All the best