See if you are applying for Mumbai University, then its not good because Mumbai University don't release any correction portals for its students. So such problems can create some trouble during verification if you have made extreme mistakes while filling up the application form online. Now what I can suggest you is that you can contact the admission cell of Mumbai University and get it discussed with the officials. If there are any ways they will inform you as well as what kind of issues can come up they may inform that also.

To know more about Mumbai University visit the link below:

https://university.careers360.com/articles/mumbai-university-admission-form

For the contact details you may visit the link below:

https://mu.ac.in/contact-us

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