CLAT is all about percentile and not the percentage. It is not about how much you score but how much you score when compared to all other aspirants that appear in the entrance exam along with you.
For NALSAR, the cut-off is between 130 to 140 marks out of 200 for the general category. If you manage to be in the top 120 ranks in the country, your seat is secured at NALSAR.
If the difficulty of the exam is easy then you expect the cut-off to be a bit relaxed. You can expect it to be between 170-185.