Harivarasanam, also known as Hariharasuthāshtakam, is a highly Sanskritised Malayalam Hindu composer in the text, recited at Sabarimala (the main Ayyappan pilgrimage site) before the closing the temple door every night.Though there have been many versions of this song sung by many renowned vocalists like P. Unni Krishnan, the Sabarimala temple plays the rendition by KJ Yesudas of a musical version composed by the renowned music director G. Devarajan every evening after the final pooja.

Harivarasana is a song devoted to singing in Sabarimala every day. This song is written in the church.

The song is considered to be a songwriting song to sleep for Lord Ayyappan.

Q. J. Yesudas voice in traditional music - music composed silently with rhythm, is broadcasting in Ayyappa churches.