It all depends on your luck !!
Coming to Pilani Campus
First year students usually get H wing ( lower & upper ) which are designed for 2 students.
Some of the first year students get T wing or back wing where there are single room. It all depends on your luck on the first day of campus !!
I was allotted Krishna Bhawan in my first year, where I shared my room. Its not a big deal as most of the time you will not spend time in your room rather just chill with friends or ANC or cannot place or play counter strike at IPC !!
Good luck 😀