Step 1: Understanding the Question:
The question asks for the founder of the Satyashodhak Samaj, a significant social reform movement in India.
Step 2: Detailed Explanation:
Satyashodhak Samaj (Truth Seekers' Society) was founded to liberate the oppressed classes and women from social and religious slavery.
- Jyotirao Phule: Founded Satyashodhak Samaj on September 24, 1873, in Pune, Maharashtra. He worked extensively for caste reform and women's education.
- Raja Ram Mohan Roy: Founded the Brahmo Samaj.
- Swami Vivekananda: Founded the Ramakrishna Mission.
- Mahatma Gandhi: Associated with Harijan Sevak Sangh.
Step 3: Final Answer:
Jyotirao Phule is the founder of Satyashodhak Samaj.