I think you are asking "How to fill neet application?"

Applying for NEET is an online process. Paper form of application is not available for NEET and JEE MAINS. So, here is the youtube link i can provide which helps you in applying for NEET online.

https://www.youtube.com/watch (https://www.youtube.com/watch?time_continue=20&v=xCBGgmhAXrg&feature=emb_logo) ? time_continue=20&v=xCBGgmhAXrg&feature=emb_logo (https://www.youtube.com/watch?time_continue=20&v=xCBGgmhAXrg&feature=emb_logo)

Hope this information helps you.

Wishing you a good luck !