Hello Student,

Sorry for you that you face the problem. Basically in that case if the system automatically getting the country code as Indian number then my advice is that you should register yourself with another number if all other basic informations are not filled it from the first application. It's so then you have to contact to the official authority of NTA or Neet. Basically in correction window you only can change your gender nationality email address categories and some field of the second phase. Hope this will help you click on the link below to know more about Neet correction window

https://medicine.careers360.com/articles/neet-correction-window .