Dalit Shoshit Samaj Sangharsh Samiti

The Dalit Shoshit Samaj Sangharsh Samiti, abbreviated as DS4 or DSSSS (lit. "Dalit and other Exploited Groups Struggle Committee") was founded in 1981 by Kanshi Ram to organise Dalits and other marginalised groups of India.

Source: Wikipedia — Dalit Shoshit Samaj Sangharsh Samiti (CC BY-SA 4.0)