Sunil Babu Pant is the first openly gay politician (Member of Parliament and Constituent assembly from 2008-12) in Nepal, and the head of the Blue Diamond Society (BDS) – the only gay rights group in Nepal. The NGO works on human rights, sexual health and HIV/AIDS for sexual/gender minorities in Nepal. Further, Sunil has conducted a study on the reasons, extent and impact of social exclusion of sexual minorities in Nepal, which resulted in a report in 2005. He has also trained Nepalese media on LGBTI issues over the past 10 years, as well as conducted sensitisation training for police and security forces in Nepal. Sunil and BDS also offer training to local activists and organisations in order to strengthen their capacity to document human rights abuses and conduct successful advocacy campaigns. Sunil is also one the 29 experts who formulated Yogjakarta Principles.
Much due to Sunil’s relentless advocacy, the rights of sexual minorities are now guaranteed by Nepal's constitution and are considered as one of the national development, social and political issues in Nepal. In 2007, Sunil, BDS and others filed a writ petition at the Supreme Court of Nepal, demanding equal rights and recognition for sexual minorities. On 21 December 2007, the Court made the historic decision to protect and defend equal rights for sexual minorities and Nepal not only legalized sexual minority's rights but also become the first country in world to recognize third gender category.