Listen to Etho Theerangal (Duet) online. Etho Theerangal (Duet) is a Malayalam language song and is sung by Sithara Krishnakumar and Gopi Sunder. Etho Theerangal (Duet), from the album Hits Of Sithara Krishnakumar, was released in the year 2017. The duration of the song is 4:22. Download Malayalam songs online from JioSaavn.