The rooms at NLSIU hostel are more or less okay. It is a government-backed institute and we cannot compare it with NALSAR.
The rooms at NLSIU can accommodate three students. They are not very spacious and you might find it difficult to share the rooms. There is no need for AC as the weather in Hyderabad is comfortable. There are coolers for the hotter months.
In the case of NALSAR, you will be sharing your room with another student for the first three years. From the 4th year onwards, you will have your own room. The rooms are not that spacious. With the construction of new hostel buildings, the problem of overcrowding is being dealt with.