The special round is held for all aspirants who were eligible for Joint Seat Allocation Authority (JoSAA) according to the Joint Entrance Exam (JEE-Main) this year. CSAB 2019 counselling session will have two special rounds of counselling and seat allotment for IIITs and NITs and GFTIs.

So the number is not fixed but it really depends upon the no of vaccines present at that moment of time in the particular College.