Hey Rutvik ,

Actually it is necessary in your part to upload same photos of different size in both places.  The conducting body has asked all students to upload the same photo for applying NEET 2020.

You even have to carry the postcard size photo with you to the examination centre. You need to write your name and roll number at the back of the postcard size photo while going to the examination centre.

In case if you've uploaded two different photos of you, than the NEET authorities might ask you to change them during the correction window. It is to continue from 15th Jan to 31st Jan. They'll inform you via a text message in your registered phone number and email address to change any mistake you've made during the application. If they don't send you any message ; than you don't have to change anything.

hope it helps !!