Tumhe dillagi bhul jani padegi song is heart touching song because this song sung by "rahat fateh ali khan". And rahat fateh ali khan sing song very well to sad songs, they will be able to take some singer in their place in the field of sad song. Singing song is such a song that you can hear at any time because it comes in the evergreen songs. The song will be heard by long time. In sad songs dillagi is my favourite song.