Listen to O Beqarar Dil online. O Beqarar Dil is a Hindi language song and is sung by Hemant Kumar and Lata Mangeshkar. O Beqarar Dil, from the album Legends - Kaifi Azmi - Vol 3, was released in the year 2012. The duration of the song is 4:22. Download Hindi songs online from JioSaavn.