On 24 September 1874, Jotirao formed 'Satya Shodhak Samaj' (Society of Seekers of Truth) with himself as its first president and treasurer. The main objectives of the organisation were to liberate the Shudras and Ati Shudras and to prevent their 'exploitation' by the brahmins. Through this Satya Shodhak Samaj, Jotirao refused to regard the vedas as sacrosanct. He opposed idolatry and denounced the chaturvarnya system (the caste system).
When Phule established the SatyaShodhak Samaj, Savitribai became the head of the women's section which included ninety female members. Moreover, she worked tirelessly as a school teacher for girls. Deenbandhu publication, the mouthpiece of the Satya Shodhak Samaj, played an important role in Satya Shodhak Samajís movement. After Jotiba's death in 1890 his spirited followers went on spreading the movement to the remotest parts of Maharashtra. Shahu Maharaj, the ruler of Kolhapur princely state, gave a lot of financial and moral support to Satya Shodhak Samaj.