Listen to Radha Sametha (Unni) online. Radha Sametha (Unni) is a Carnatic language song and is sung by P. Unnikrishnan. Radha Sametha (Unni), from the album Best Of P.Unnikrishnan, was released in the year 1994. The duration of the song is 6:20. Download Carnatic songs online from JioSaavn.