kovai is a free font available for personal use as well as commercial use. you can use kovai font for any publishing work, digital or printed media.
Downloading and Installing The kovai Font
before installing kovai font you have to download kovai font and save on your hard drive. then unzip it using any program or windows / mac default options.
then right click on the ttf files named kovai.ttf and then click install.
or you can kovai font files (.ttf) inside "fonts" folder in System Drive > Windows > Fonts folder.