Listen to Lo Aa Gayi Unki Yaad Revival online. Lo Aa Gayi Unki Yaad Revival is a Hindi language song and is sung by Ravi and Lata Mangeshkar. Lo Aa Gayi Unki Yaad Revival, from the album Lo Aa Gayi Unki Yaad Revival - 38, was released in the year 1999. The duration of the song is 5:14. Download Hindi songs online from JioSaavn.