Listen to Aar Keno Aar Keno online. Aar Keno Aar Keno is a Bengali language song and is sung by Kanika Banerjee. Aar Keno Aar Keno, from the album Gems From Tagore,Vol. 1, was released in the year 1971. The duration of the song is 1:30. Download Bengali songs online from JioSaavn.