CAT already closed its form correction window on 27th September 2021 after the deadline date it is not possible for the candidate to change or edit the form.you can contact help desk for the issue you face they provide you right solution for the problem.

For your knowledge only obc under non creamy layer gets the advantage of reservation.many colleges cancelled the admission if candidates fails to submit non creamy layer certificate.so please contact help desk at cathelpdesk@iimcat.co.in (mailto:cathelpdesk@iimcat.co.in)

Know your college according to your percentile you secured in cat with your category

https://bschool.careers360.com/cat-college-predictor?utm_source=google&utm_medium=paid&utm_campaign=cat-iim-call-predictor&gclid=Cj0KCQiA_c-OBhDFARIsAIFg3eyAMa8gQbO-_PGo0akDwnpskpgBZ76WhH-MmybVtTYYdKzAQwvkXC0aArMAEALw_wcB

Thank you!!!