Actor Arjun Bijlani reacted to trolls calling his supernatural drama 'Naagin' unrealistic and regressive. "Naagin was marketed as a fantasy fiction," he said. "Regressive is when you show all these things in a realistic story...What is Spider-Man? Is it real? Is Nagin real? It's not," he added. "It was criticised by only those who're sitting at home without...work," he said.