Hi Shalem,

You have to report at the alloted institute prior to csab special round.

This is written in business rules of CSAB Special round: "All Candidates having got allotted seat in NITs/IIITs/other GFTIs till 7th JoSAA round must REPORT to the Allotted Institute between 19th – 23rd July, 2019, failing which their allotted seat through JoSAA rounds will be CANCELLED"

Thanks.