Listen to Aawaz Deke Humen Tum Bulao online. Aawaz Deke Humen Tum Bulao is a Hindi language song and is sung by Lata Mangeshkar and Mohammed Rafi. Aawaz Deke Humen Tum Bulao, from the album Professor, was released in the year 1962. The duration of the song is 3:09. Download Hindi songs online from JioSaavn.