Recently Bollywood actor Irrfan Khan put up a tweet with a post that he is suffering with a rare disease and said he will tell them the truth once he gets the proper details. Now rumours are going around mentionng that Irrfan is suffering from critical Brain Cancer. Although nothing has been confirmed. Let's check out more about the Bollywood celebrities like Amitabh Bachchan, Salman Khan, Saif Ali Khan, Hrithik Roshan etc. have been faced serious illness and came out of that diseases. Watch video.