Established on 27 September 1991, the Diocesan Social Service Society (DSSS), Imphal is a registered non-governmental organization and the official social service and development wing of the Archdiocese of Imphal, registered under the Societies Registration Act (Reg. No. 253/M/SR/1991). DSSS was established in response to the growing socio-economic challenges in Manipur, including poverty, unemployment, limited access to quality education and healthcare, environmental degradation, recurring disasters, and the increasing vulnerability of marginalized communities. The organization was founded to provide a professional, community-based approach to sustainable development, humanitarian assistance, and social transformation.

For over three decades, DSSS has worked across all districts of Manipur, including remote, rural, and conflict-affected areas, serving communities without discrimination based on caste, creed, religion, ethnicity, or gender. The organization believes that sustainable development is achieved through community participation, local leadership, institutional collaboration, and strategic partnerships. By working closely with government departments, civil society organizations, development partners, corporate institutions, and local communities, DSSS designs and implements programmes that respond to emerging social and developmental needs