"The Nepali Calendar (Nepali: नेपाली पात्रो) is a traditional solar calendar used in Nepal for both civil and religious purposes. The year begins in the month Baishakh; usually around 14 April.
The official Nepali Calendar follows Bikram Samwat, abbreviated B.S. Nepal Sambat on other hand is the calendar that has origin in Nepal and followed only by a group of people of Newar origin. The Newa foundation aims to establish this calendar as an official Nepali calendar.
The current Nepali year is 2068. The B.S. year is 56.7 years ahead of the (western) Gregorian Calendar. The Gregorian year 2000 AD began 17 Poush 2056 and ended 16 Poush 2057. "
This calendar contails both B.S. and A.D. date, with tithis and special events. You can have this monthly calendar in your website as well. You just need to paste this small pease of code in your webpage.
<iframe src="http://calendar.calendarofnepal.com/calendar.aspx" width="635" height="565" scrolling="no" frameborder="0"></iframe>