Akilathirattu Ammanai, also called Thiru Edu, is the main religious text of the Tamil belief system Ayyavazhi. The title is often abbreviated to Akilam or Akilathirattu.
The most controversial versions of Akilam; Clockwise from top-left: Kalai Ilakkiya Peravai version, Anbukkodi Makkal-Iyakkam Version, Vaikundar Thirukkudumbam Version (1989) and DDPV