Theme Installation

Using Admin Panel

Step 1: Login to your WordPress admin panel and navigate to Appearance → Themes.

Step 2: Click Add New button at the top of the page, then the Upload Theme button on the next page.

Using FTP

Using an FTP client to access your host web server, open directory to copy the theme in wp-content/themes directory provided by WordPress.
Extract theme from archive and upload to the host server in wp-content/themes/your_theme