One of my friends once shared his experiences considering the Hostel of NIT Calicut, whether it is good or bad or anything, but the student must be prepared to incident all kind of things at the time of staying in the hostel.
You might be given a basic crash course regarding the student's body language. This will help you to understand the language spoken by hostel guards and managers as they were from Kerala and speak in Malayalam. Thus, the students from North India and Andhrapradesh (Telegu) must be ready to face this issue in the hostel.
There is always an electricity problem is a hostel, and a student has to use their own mobile data to perform their academics and assignment. Because no electricity means no internet, no fan, no light, and this is very common in the hostel of NIT Calicut. Students may face 2 nights without electricity.