See the correction window will open as the form fill up procedure last date ends. Thus you should wait sometime till the last date of submission of application. After that the correction window will be opened through which you can do necessary corrections. So don't worry about it.

To know more visit the link below:

https://news.careers360.com/maharashtra-fyjc-cet-2021-admission-forms-released-at-cet-mh-sscacin-know-how-apply

I hope this answer helps. All the very best for your future endeavors!