Listen to Oo Mridule - Sad Version online. Oo Mridule - Sad Version is a Malayalam language song and is sung by Sathyan Anthikad and K.J. Yesudas. Oo Mridule - Sad Version, from the album Njan Ekananu (Original Motion Picture Soundtrack), was released in the year 1982. The duration of the song is 4:29. Download Malayalam songs online from JioSaavn.