According to the business rules of CSAB round for the second round If a candidate who has been allotted a seat in special Round-II and his/her seat cancelled due to ineligibility or in-appropriate documents, his/her participation fee and Seat Acceptance Fee (if paid) will not be refunded. and If candidate have cancelled the seat from his side then fees will not be returned this facility is valid in first round only.

If you have participating in csab special round, by paying participation fees of Rs. 37000 ( for general/ews/obc ) or Rs. 17000 (for sc/pwd/st candidates) then, out of this fees, Rs. 2000 is processing charges, and is non refundable.

Now, as you did not got allotted any seat in csab even in 2nd special round, then your participation fees amount will be automatically gets refunded after deducting a processing fees of Rs. 2000.

You will definitely get your refund , if it doesn't arrive then do approach the concerned authorities