According to some of the student reviews, I read online, I would say that the answer depends on your preparation for the entrance exam CLAT (Common Law Admission Test) if you wish to get into any National Law Schools/Universities in India. 

Every exam is competitive since there are so many other students appearing for the exam along with you. NLSIU's intake is very minimal when compared to others. Its syllabus is quite challenging and the students there get prepared as quite good lawyers. 

Roughly, you will have to make sure that you rank in the first 50 in All India Rank (AIR) if you belong to the general category, and you get a little more margin if you belong to any reservation category.