Listen to Kosto Dili Betha Dili online. Kosto Dili Betha Dili is a Bengali language song and is sung by Kundan Kumar. Kosto Dili Betha Dili, from the album Kosto Dili Betha Dili, was released in the year 2023. The duration of the song is 5:24. Download Bengali songs online from JioSaavn.