Hey guyz I am really sorry about the previous link for complete guide on how to write on ranjana..I have edited it. It is at
http://malaiya.tripod.com/ranjana/Ranjana.pdf

and previous one was for proposed newari unicode.. which is at http://www.evertype.com/standards/tai/newari.pdf

I am really sorry for the mistake. I gave the wrong link on that one.

Title: Preliminary proposal for encoding the Rañjana script in the SMP of the UCS
Source: Michael Everson
http://std.dkuug.dk/jtc1/sc2/wg2/docs/n3649.pdf

For people interested in calligraphy, here is a link you might be interested....especialy nepali calligraphy
http://www.calligraphynepal.com/

a blog on calligrahpy
http://nepalcalligraphy.blogspot.com/