Listen to Vasi Thirave Kaasu online. Vasi Thirave Kaasu is a Tamil language song and is sung by Traditional and Dharmapuram P. Swaminathan. Vasi Thirave Kaasu, from the album Thanam Tharum Thrupathigal, was released in the year 2006. The duration of the song is 6:17. Download Tamil songs online from JioSaavn.