Listen to Khai Hai Re Ham Ne Qasam online. Khai Hai Re Ham Ne Qasam is a Hindi language song and is sung by Lata Mangeshkar. Khai Hai Re Ham Ne Qasam, from the album Lata Mangeshkar - Sheer Magic Compilation, was released in the year 2008. The duration of the song is 4:11. Download Hindi songs online from JioSaavn.