Shastha Gayathri Mantram song is a Sanskrit devotional song from the Vishnu Gayathri - Janaki released on 0. Music of Shastha Gayathri Mantram song is composed by . Shastha Gayathri Mantram was sung by Janaki. Download Shastha Gayathri Mantram song from Vishnu Gayathri - Janaki on Raaga.com.