Dhanusha Sewa Samiti (DSS) was established in 1992 in Dhanusha district with the mission to empower the disadvantaged people and their civic organizations to achieve sustainable and equitable development. Affiliated with the Social Welfare Council in 1992 and a member of NGO Federation of Nepal, Dhanusha district since 1994, DSS has worked in 90 VDCs amongst 101 VDCs of Dhanusha. It has also worked in some VDCs of Mahottari and Sindhuli districts.

As a leading community based organization in the district, DSS has been appreciated by several organizations and Government of Nepal (GoN). DSS has been appreciated by District Development Committee as one of the leading NGOs in Dhanusha. The international NGO, GPUK has commended DSS for invaluable services and cooperation extended in planning and implementing the Drinking Water Project in 2000.

Further, District Office of Ministry of Forestry and Soil Conservation applauded DSS for its outstanding services in 2005. It was also been awarded with 'RANA SAMUNDRA BAM AWARD 2003' for its outstanding service and contribution in the field of Tuberculosis control.