'Bigg Boss' extension has no links with 'Ashoka': Raj Nayak

"It was a challenge for me to prepare the sets for 'Ashoka' because it was not a mythological show where you can play with your imagination. But 'Ashoka' is a historical show and if we are not right on the fact then we can land in a big soup," Umang, who has also created the sets of mythological show 'Mahadev', said. 'Dhoom 3' star Siddharth Nigam, who played the young Aamir Khan in the film, is playing the titular character of Ashoka in the show.