Listen to Kosto Keno Valobashay online. Kosto Keno Valobashay is a Bengali language song and is sung by Ilham Hasan Taha. Kosto Keno Valobashay, from the album Kosto Keno Valobashay, was released in the year 2025. The duration of the song is 3:53. Download Bengali songs online from JioSaavn.