Listen to Mere Dil Mein Aaj Kya Hai online. Mere Dil Mein Aaj Kya Hai is a Hindi language song and is sung by Laxmikant - Pyarelal and Kishore Kumar. Mere Dil Mein Aaj Kya Hai, from the album O Mere Dil Ke Chain, was released in the year 2004. The duration of the song is 4:22. Download Hindi songs online from JioSaavn.