Veteran actor Amitabh Bachchan has revealed that actor Allu Arjun's step with his slipper in the song 'Srivalli' was actually a mistake. The actor said that Sukumar, who directed the film 'Pushpa: The Rise', told him while he was shooting in Hyderabad that Allu Arjun missed his slipper and it became a step. The film collected over ₹360 crore worldwide.