Listen to Muthan Muthalaai - BGM online. Muthan Muthalaai - BGM is a Tamil language song and is sung by Ravi Shankar, Rahul Nambiar and Rita Thyagarajan. Muthan Muthalaai - BGM, from the album Bhairava Geetha - Tamil, was released in the year 2018. The duration of the song is 4:25. Download Tamil songs online from JioSaavn.