Vairamani is a free font available for personal use as well as commercial use. you can use Vairamani font for any publishing work, digital or printed media.
Downloading and Installing The Vairamani Font
before installing Vairamani font you have to download Vairamani 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 Vairamani.ttf and then click install.
or you can Vairamani font files (.ttf) inside "fonts" folder in System Drive > Windows > Fonts folder.