Listen to Duaar Par Beta Aail Ba online. Duaar Par Beta Aail Ba is a Bhojpuri language song and is sung by Lalu Nadan Yadav. Duaar Par Beta Aail Ba, from the album Duaar Par Beta Aail Ba, was released in the year 2020. The duration of the song is 4:05. Download Bhojpuri songs online from JioSaavn.