dear abdul,

you should upload a photograph must be taken on or after 01.09.2019 and clearly the name of candidate along with the date of taking the photograph is written on it. Photograph should not be with cap or goggles. The focus needs to be on face 80% and the background of photo is white.

you must have to follow the above instructions because it is clearly written in the bulletin of neet ug 2020.

on other hand for signature candidate  should put his full signature in running hand writing [not in capital letter] on white paper with Black Ink pen and scan for uploading.

• File size must be between 4 kb to 30 kb.

so you need not to do your signature with fountain pen in most general case for this purpose only simple black ink ball pen is used.so in my opening you should use simple black ink ball pen for signature.

For thumb impression you should put your left-hand thumb Impression on white paper with Blue Ink and scan for uploading.

File size must be between 10 kb to 50 kb.

remember scanned images in JPG/ JPEG format only for signature as well as thumb impression.