Listen to O Dayal Bichar Karo online. O Dayal Bichar Karo is a Bengali language song and is sung by Akhil Bandhu Ghosh. O Dayal Bichar Karo, from the album Best Of Akhil Bandhu Ghosh, was released in the year 1965. The duration of the song is 2:41. Download Bengali songs online from JioSaavn.