Hello shanuangiras,
Well, csab is for vacant seats after josaa 2020 and its schedule is as
CSAB 2020 Dates
6.Display of Seat Allotment Result – Special Round-II 24 Nov 2020
7.Reporting at Allotted Institute (In-Person/Online) 25 to 30 Nov 2020
for eligibility criteria, fees of CSAB etc you can refer to business rule of CSAB 2019 as CSAB 2020 isn't released yet, at ( CSAB Business Rule 2019 (https://csab.nic.in/CMS/Handler/FileHandler.ashx?i=File&ii=138&iii=Y) )
Hope This Helps, and feel free to ask any further query...
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