Hi Utkarsh,

Once you have registered on the official website of BITSAT for taking part in the counselling procedure, just sit back and keep yourself updated about anything new. You will be asked to fill up your preference and after that the seat allotment process will start. After 1st iteration, if you get a seat, you will have to pay the admission of only one semester. Moreover, throughout your degree, you will have to pay the fees of only one semester. For more information about the same, visit the link given:

https://engineering.careers360.com/articles/bitsat-counselling-seat-allotment

Feel free to ask your other queries here.

Good luck!