People should keep humming 'Duma Dum', says Irrfan Khan

Updated: Jun 12, 2016, 18:29 IST
Irrfan Khan believes in doing new things every now and then. Now, the actor has lip synced for his song 'Duma Dum' in his upcoming film 'Madaari.' While talking about his 'lip-sync' moment, Irrfan explained how the song was important for the plot of the film.