Dr. Pariyar has been working as domestic and sexual violence councilor for over 15 years in the United States. She is currently serving as Senior Program Coordinator at Hudson Speaks Against Sexual Violence, a rape victims crisis center in the Hudson County, New Jersey. She also serves for NJ Governor’s Commissioners for Asian American Pacific Islander (AAPI)

Bishnu is the founding President of rights-based Nepali organization, ADWAN .ORG for Dalit and marginalized women, children and their families which aims to foster a measure of economic independence, to boost self-esteem, dignity and to instill solidarity among diverse community and build a sense of national pride. 

Dr. Pariyar is actively involved with the United Nations NGO Committee on the Status of Women (CSW), New York and had served as Co-Chair of Consultation Day 2018.  Dr. Pariyar serves as Honorary Council Member at International Coordinator Council of Non-Resident Nepali Association (NRNA). She is also founding President of Jersey City-based Women for Cause (WFC), Co-Founder of Jersey City Nepali Community (JCNC) and Executive Board Member of South Asian American Outreach Community (SACO), New Jersey.She previously served as Chair of Women Empowerment Task Force of NRNA ICC between 2013-2015. Currently she serves NRNAICC Vice President. Currently, Dr. Pariyar is working as a Senior Coordinator for Hudson Speaks Against Sexual Violence 
 
Dr. Pariyar has been awarded with more than 40 national and international recognition, award, citation, proclamation for her outstanding work for Nepali people and diaspora community including The Bridge Builder Award from Harvard University, Perdita Hudson Human Rights Award by United Nations Association of USA and more.
Recently, The Massachusetts Department of education has included her life story on the curriculum for World History and Geography books for Grade 7th.