Use WES (An evaluation organization that awards credits for foreign courses to universities here)...A few years ago, someone I know personally did her evaluation through WES and she ended up getting all 3 years knocked off her Bachelors here!  It only took a year more.  However, her degree was from India...Might be or might not be the same from Nepal...Best to apply and call them directly.

http://www.wes.org/