Hello Aspirant!

Candidates MUST “lock” their choices. For candidates who do NOT lock their choices, their last saved choices will be locked automatically when the time-window for filling-in of choices closes. A candidate is required to fill option for ‘freeze’, ‘slide’ or ‘float’ the choice of academic program. If in a subsequent round, a candidate’s allotment from NIT+ system changes to an IIT, the candidate MUST report ONCE AGAIN at an IIT reporting centre, similarly if a candidate’s allotment from IIT changes to an NIT+ system, the candidate MUST report ONCE AGAIN at any NIT+ reporting centre, failure to do so will result in forfeiture of seats allocated in both NIT+ system and IIT. The candidate must have to report physically in the centre for using the float option.

Hope this helps you :)