Title track of’aye dil hai muskil’ is a beautiful song, Composed by Pritam Sir and Sung by arijit singh’king of the golden voice’. As usually, He sung this song in romantic way. When I heard this song firstly, I had gone crazy after this song and I made it my caller tune. It’s video is also fabulous. You should download this song . I m sure, you would enjoy it . Thanks.