Hello Nikhil,
During the First Cap round, It is required of all candidates to confirm their online option form. Once the options have been confirmed, the candidate will not be allowed to change them.
Once you've completed your First Round choice entry, you won't be able to add any more options for the second round unless a college adds a few seats after the first round allocation. However, before the second round of allotment, you can change the order of the options you've selected.
Candidates who give the opportunity to upgrade their choice at the time of admission to the allotted College will have their higher preference choice upgraded during the second round of the online allotment procedure.
Hope That answers your query
For more information please check:
https://engineering.careers360.com/articles/mht-cet-counselling
All the Best
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile