Listen to Roaau Hakau Dilwa Sona online. Roaau Hakau Dilwa Sona is a Bhojpuri language song and is sung by Rahul Rawani. Roaau Hakau Dilwa Sona, from the album Roaau Hakau Dilwa Sona, was released in the year 2023. The duration of the song is 3:54. Download Bhojpuri songs online from JioSaavn.