Listen to Retha Rakthavu online. Retha Rakthavu is a Kannada language song and is sung by D.R. Tejaswini. Retha Rakthavu, from the album Bhakthi Illadha Begeyalli Bendhenayya, was released in the year 2012. The duration of the song is 2:37. Download Kannada songs online from JioSaavn.