Listen to Kasthoori Pottumanju online. Kasthoori Pottumanju is a Malayalam language song and is sung by K.J. Yesudas and S. Janaki. Kasthoori Pottumanju, from the album Pooja Pushpam, was released in the year 1969. The duration of the song is 3:14. Download Malayalam songs online from JioSaavn.