This paper is an attempt to study the use of dramatic Irony in Girish Karnad’s play Tughlaq. Dramatic irony or Tragic irony is a figure of speech. In this what is said by characters in a play has a different and more serious meaning to the audience. The audience is more aware than the characters concerned, of the catastrophe which is either going to occur or has occurred. Often it happens that what is being said or done on the stage has one meaning for the characters concerned and another for the spectators who know something that the characters do not know. The device on the part of the playwright which produces these two points of view is called dramatic irony. When it arises of what is said, it is verbal irony. When it arises of what is done, it is irony of situation.