Sari Soldiers
This excellent documentary (details avaliable here) charts the stories of women caught up in the conflict in Nepal
The Maina Sunuwar case is prominently featured in the film.
The film is avaliable to purchase at the above link, and the director is happy for small screenings to be arranged to help spread the word about this case.
The AHRC
The Asian Human Rights Commission have established this site allowing people to contact the Nepali government:
http://campaigns.ahrchk.net/sunuwar/index.php
Click on “SEND A LETTER, TAKE ACTION!” and you will be able to send a protest to the Nepali Prime Minister.
Justice for Maina Sunuwar 
Who administers this site? and how do you obtain access to court documents, like the military court of inquiry??? …How do you do it???