Listen to Dekha Dao Hey Dayal Hari online. Dekha Dao Hey Dayal Hari is a Bengali language song and is sung by Aparna Biswas and Aswini Gosai. Dekha Dao Hey Dayal Hari, from the album Dekha Dao Hey Dayal Hari, was released in the year 2013. The duration of the song is 7:22. Download Bengali songs online from JioSaavn.