Hello Dear Student,

No, it's not possible, Once you submitted the choice fillings and locked the Colleges, you can not do further modifications but do not worry in Next Round (2) of the MCC Counselling, you will get the chance to fill the fresh new choice fillings.

To know more about NEET-UG MCC Counselling please visit: https://medicine.careers360.com/articles/neet-faqs/amp

Use Careers360 NEET College Predictor Tool, To know your Chances of Securing Medical College on your Rank, here is the link: https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer

All the Best!