Here are some of the popular Nepali fonts that I had. I wanted to share it to you all.
Download link: http://www.mediafire.com/?iezeptyxyg1m08z
One of the easy way to install the font is
1. First select and copy the fonts
2. Hold down windows and press r.
2. Type fonts
3. Fonts window will open
4. Paste the fonts in that window and you are done.
* In windows 7 you can directly install the font by right clicking the font file and clicking install.
I you are looking for Nepali Unicode, you can get it from Madan Puraskar Pustakalaya site.