Hello Hima,

You will get a mail from AIIMS to make changes to the image at the later stage if you have uploaded the wrong image.

So do keep checking your mail and login for the status of your application.

I would suggest you to go through the FAQ section by AIIMS  for more information.

Link:http://dm.aiimsexams.org/faq.html

Hope this helps and all the very best to you!