IIT Gandhinagar has some of the best hostels among all the IITs. My cousin studying here once visited IIT Roorkee for the Inter-IIT cultural meet and concluded that their own hostels were the best. Additionally, she also participated in Invent@IITGN wherein she worked with people from 8 other IITs. They too said the same things that IIT Gandhinagar has the best hostel and mess facilities
Here are some detailed features of the accommodation facilities here
In a nutshell, the hostels at IIT Gandhinagar are the best among all IITs!