Listen to Thengum Hridayam online. Thengum Hridayam is a Malayalam language song and is sung by K.J. Yesudas and Raveendran Master. Thengum Hridayam, from the album Aattakalasam, was released in the year 1983. The duration of the song is 4:36. Download Malayalam songs online from JioSaavn.