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Poykayil Yohannan (17 February 1879, in Eraviperoor – 1939), known as Poykayil Appachan or Poykayil Kumara Guru Devan, was a dalit activist, poet and the founder of the socio-religious movement Prathyaksha Raksha Daiva Sabha ("God's Society of Obvious Salvation"). His father was Kandan and mother Lachi. His original name was Kumaran.