Listen to Insaan Aaj Kal Ka online. Insaan Aaj Kal Ka is a Hindi language song and is sung by Mahesh Prabhakar and Kumar Vishu. Insaan Aaj Kal Ka, from the album Kitna Badal Gaya Insaan, was released in the year 2002. The duration of the song is 5:10. Download Hindi songs online from JioSaavn.