Hey Sajal ,
Greetings!

Kindly find the admission process below :

Admission Procedure:

Round:

• The admission process has multiple rounds.
• In each round, the institute will allot a seat to the applicant, and the applicant will have a deadline by which they can accept or decline the allotted seat;
• In the event no seat is allotted to the applicant, the applicant can continue to further rounds. This is not automatic.

Seat Acceptance:

• The applicant should use the portal to explicitly accept the seat and pay the required fees as given below.
• Applicants who fail to do so will have their seat allotment cancelled and will not be considered for the further rounds of admission.

Continuation to Further Rounds:

• An applicant MUST explicitly concur (agree) to participate in further rounds of seat allotments.
• This requires logging onto a portal and indicating acceptance and paying the required fee.
  
  Source : https://www.iiit.ac.in/admissions/undergraduate/jee-mains/
  
  
  Good Luck ! You can reply to this comment if you have any further queries , I will be happy to help .