Hi Aspirant!
According to NTA JEE MAIN governing body following are the terms and conditions for CSAB SPECIAL COUNSELING:
Candidates should have qualified JEE Main 2020 .
The candidate have to fulfill the eligibility criteria of JoSAA 2020.
Those candidates who participate in JoSAA 2020 but failed to get allotted will be eligible for CSAB special round 2020.
Candidates who were allotted through JoSAA 2020 but failed to confirm their admission or withdrew from their seats will also be eligible for CSAB 2020 special round.
It should be noted that those candidates who opted not to participate in the special round after JoSAA will not be eligible for CSAB 2020 special round admission procedure.
Hence you can not solely participate directly in CSAB firstly you have to participate in JoSSA Counseling.
For more information you can follow up this Career360's article :
https://engineering.careers360.com/articles/csab
Happy Hustling!
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