1. The Satya Shodhak Samaj (Truth Seekers' Society) was founded by Jyotirao Phule in Pune, Maharashtra, in 1873.
2. The primary objective of the Samaj was to achieve social justice for the marginalized sections of society, particularly focusing on the lower castes (Shudras and Ati-Shudras) and women.
3. It aimed to liberate them from the oppression and exploitation perpetuated by the traditional caste system and the Brahmanical dominance in social and religious spheres.
4. Therefore, the Satya Shodhak Samaj organized an anti-caste movement primarily centered in Maharashtra.
5. Options (A), (B), and (D) are incorrect as the Samaj's core focus was not primarily on tribal upliftment in Bihar, temple-entry in Gujarat, or peasant movements in Punjab.