Submit New Theme

You can make an announcement here (read the sticky) and you can also go to https://themes.wordpress.net to submit it.
(don’t expect immediate response…)

I think you forget to provide a announcement link ??

I have already visited at https://themes.wordpress.net/upload-theme/ but I am unable to create a user due to redirection.

What announcement link?
Start a new topic in the Themes forum and tell about your theme, its licence, features etc; give a link to its page, demo, download.