Hy Ayush!! 

Talking about NLSIU , Bangalore, then Yes , hostel is mandatory for all the students studying there. The hostel fee is already included in the fee structure given by them .

Need not to worry ,they have a nice hostel and you will ne exposed to better opportunities  while staying in the hostel , 

For the first year students they have dormatory system , others have their rooms to live. 

So it will be a great experience staying there.

Hope you make it up to NLSIU !! 

GOOD LUCK