Listen to Invocation online. Invocation is a Tamil language song and is sung by Shyamala Balakrishnan, Padma Subrahmanyam, N. Vasudevan and K.S. Vasudevan. Invocation, from the album Padma Subramaniam Folk Songs Of Tamil Nadu, was released in the year 1997. The duration of the song is 4:00. Download Tamil songs online from JioSaavn.