In 1993 a group of dalit students named Dalit Students' Association was formed. Now, it is named 'Parittran', a Bengali word meaning 'Liberation or Salvation'. It is always a learning organization. Parittran is a promise, Parittran is a movement of the Dalits, for the Dalits and by the Dalits. Parittran It is a non-government organization, the first dalit social action group in Bangladesh. This is a community-based organization, and network that work to secure social change and protect the rights of marginalized people. Parittran is committed towards building a strong line of leadership for the marginalized Movement through advocacy and networking.

Since working for long, Parittran has achieved the sustainable changes of dalit and marginalized people and the communities in Bangladesh.