Hello Rahul,

Well the thing is that, to get a seat through CSAB counselling you will have to first register for it by paying a certain amount of fee. This particular registration fee is non-refundable. When you will be allotted a seat in CSAB counselling, then they will ask you to pay a required amount to confirm the allotted seat. This amount will be refunded to you incase if you don't want to take admission. You can go through the given link and checkout all the details about CSAB counselling process : https://engineering.careers360.com/articles/csab

Good Luck !!!!!