THERE IS NO NEED FOR AFFIDAVIT FOR MINOR MISTAKES BUT KINDLY KEEP IN MIND THAT FATHER'S NAME AND NAME OF SCHOOL FROM WHICH YOU PASSED CALSS 12 BOARDS ARE IMPORTANT AND SO IF YOU HAVE ENTERED THEM WRONGLY IT MIGHT CREATE A PROBLEM DURING YOUR VERIFICATION AND COUNSELIING PROCESS

IT WOULD DO YOU GOOD TO AVAIL THE ONE TIME CORRECTION WINDOW AVAILABLE TILL 31ST JANUARY TO TRY AND RECTIFY THOSE ERRORS, SO THAT YOU ARE NOT INCONVINIENCED LATER ON.

Please read the following on how to make correction in your NEET application form. Last date for correction is January 31, 2019

https://medicine.careers360.com/articles/neet-2019-application-form-correction-guide