Ravindra, NTA will open the correction window from January 15th to January 31st for making corrections to NEET application forms. Details like name of Candidate, contact/ address details, category, PwD status, educational qualification, date of birth, etc will be treated as final. Any request or mail for changes in information after the closure of the correction period will not be considered by NTA under any circumstances.NTA will not change   any information entered by the candidates on its own after completion of application process under any circumstances. It is upto the Candidate to enter the correct information. Once the correction window has been closed,  NTA does not guarantee that any request for change in information will be entertained. So it is the best thing to make a note of all the corrections that you need to make when the correction window opens from January 15th to 31st and click on the "Final Submit" only after making all the changes that you want to.