Listen to Thandhen Yennai online. Thandhen Yennai is a Tamil language song and is sung by Sis. HemaJohn and Bro. Sampath Samraj. Thandhen Yennai, from the album Keerthangaigal Christwukee, was released in the year 2000. The duration of the song is 5:22. Download Tamil songs online from JioSaavn.