Every body in vit has a laptop and the main reason for this would be for the simple fact that all the teachers upload their teaching materials and class notes on the student portal and this is extremely important during our tests and exams.
Also we have to prepare ppts for seminars, we have to upload digital assignments and during FFCS which is when we make our timetable a laptop is very important.
Now you could try to do this all on your phone but it’s very difficult. Moreover you can’t keep asking your roommates for their laptops as and when necessity arises.
More over being an IT student you will have to do coding and for that you need the softwares on your laptop.
This answer is applicable to all braches not specifically for the IT branch.
If you don’t have a laptop you don’t need to buy a fancy one which costs around a lakh. A decent laptop which has a decent processor is more than sufficient.
You can even buy your laptop once you come to vit and there are showrooms nearby, my roommate bought his after he came to vit.