Hi karthik,
I will provide some details about the CSAB special round dates. Josaa 7th round will ends at July 23rd. The schedule of CSAB special round will be released soon in 3rd week of july. So maximum CSAB special round will start at 24th July. The schedule may be like this
Registration, Payment of Participation Fee and
Choice Filling will be on 24 the to 26th July,
Seat Allotment Result for Special Round-I will be on 27 the July,
Seat Acceptance & Institute Reporting (Online)
OR Surrender Allotted Seat and Participating in Next
Round OR Surrender Allotted Seat and NOT Participating in Next Round will be on 28th July to 30th July,
Seat Allotment Result for Special Round-II will be on 31st July,
Institute Reporting (In-Person) will be on from Aug 1st onwards,
So maximum you can start your classes on August 1st week. Hope this answer will help you.
Thank you.