How to add fonts in LibreOffice writer
Solution 1:
You have first to install the Nepali font in order to use it. You can download the font Here. Once downloaded open file manager. For the Kantipur font you can download Here, and just do the same for it.
For other Nepali fonts you can download Here.
When it opens, double click on the file, to open it.
Once it opens double click on the file Nepali.TTF, that will open the font viewer window
When it opens click on install to install the font.
Once installed, go ahead and open Libreoffice Writer, and change the font to the Nepali font as shown in the image below.