Listen to Mere Dil Mein Aaj Kya Hai online. Mere Dil Mein Aaj Kya Hai is a Hindi language song and is sung by Kishore Kumar. Mere Dil Mein Aaj Kya Hai, from the album Daag, was released in the year 1973. The duration of the song is 4:11. Download Hindi songs online from JioSaavn.