You can add a tag to your files using the following steps via JioCloud web client:

1. Select the required file for which you want to add the tag (label).
2. Click the More actions icon (...) in the top action bar, then select Add Hashtag from the dropdown.
3. You can enter single or multiple tags for your files.
4. Once done, you can click Save, and tags will be added to the selected file.

Note: Tags can be created only for a single file at a time and tags cannot be created for folders.