Hello!

The pupose of CSAB counselling is to fill the vacant seats in institutions like NIT and IITs after JoSSA counselling is complete. There is no advantage after you get admission through CSAB.

CSAB admissions happens via 3 channels:

CSAB NEUT, CSAB SFTI and CSAB UT.

Unlike JoSSA counselling, you will have to pay participation fee and seat acceptance fee in CSAB if you are alloted a seat. The fee is pretty high (i.6, 36500 rupees for general/EWS/OBC and 16,500 rupees for SC/ST/PWD for participation fee and 35,000 rupees and 15,000 rupees respectively for seat acceptance fee). If you are not alloted any seat fee will be refund after deducting some amount from it. Also note that this allocation of seat is not strictly based on marks. Therefore, you really can't predict whether you will get a seat or not.

Refer to this article for detailed information

https://engineering.careers360.com/articles/csab