Bollywood star Sonam Kapoor, who tested positive for swine flu on Saturday, was flown back to Mumbai in an air ambulance on Sunday morning. Sonam, who was undergoing treatment at Sterling Hospital, left at around 8 am. She was camping in Gondal for shooting of Sooraj Barjatiya’s “Prem Ratan Dhan Payo” film which also features Salman Khan. District health officials also visited the location of the film shooting in Gondal and inquired if anyone else had symptoms of flu. “Sonam had stayed in a city-based hotel on February 25 and in Gondal on February 26 and 27 for shooting. When inquired, it was found that she accompanied her trainer in Mumbai on February 20 when he was tested positive for H1N1.