Ayyankali was a prominent social reformer in Kerala, India, during the late 19th and early 20th centuries. He is best known for his efforts to uplift the rights and status of the marginalized Pulaya community, advocating for education, land rights, and social equality. His activism played a crucial role in challenging the caste system and promoting social justice. Ayyankali founded the Sadhujana Paripalana Sangham in 1907, an organization aimed at improving the living conditions of the oppressed. His work inspired many others in the region and contributed to the broader social reform movements in India, making him a significant figure in the fight against caste discrimination.