How to remove or unstage a file from git staged area

If you have staged a file in one of your git branch and you want to remove or unstage it, you can make use of the git rm command,

If I have an index.html file in the stage area and I want to unstage it,

➜  /myrepo git:(master) ✗ git rm --cached index.html

rm 'index.html'

➜  /myrepo git:(master) ✗ git rm index.html 
error: the following file has changes staged in the index:
    index.html
(use --cached to keep the file, or -f to force removal)

❗️Use with caution: If you want to delete/remove the files from the stage area completely (will not be available in unstaged area either) make use of -f option along with rm command.