Akilam four is the fourth section of Akilattirattu Ammanai, the primary scripture of Ayyavazhi. This section narrates the prosperous life of Santror after their marriage with the daughters of King Nirupathi. It also describes the birth of Kaliyan, his cruel activities and its impact in the world.
This section describes the genesis of modern human civilization and the universal transformation which is initiated by the beginning of Kaliyuga, thereby causing a rapid decline of the divine powers which exist until then. It also profess that all the ruling powers were surrendered to Vishnu from Sivan and other god-heads at the start of the Kaliyuga.