Complex sentence: Arattupuzha velayudha panicker, was an ezhava warrior lived in the 19th century in Kerala who has also fought against the caste oppression by the so called upper castes.
Split into simpler sentences: Arattupuzha velayudha panicker, was an ezhava warrior lived in the 19th century in Kerala. Fought against the caste oppression by the so called upper castes.