The trailer launch of Sidharth Malhotra's action film ‘Yodha' was held on Thursday, and it was attended by the entire team of the film, including producer Karan Johar and actors Raashii Khanna and Disha Patani. During the event, Disha went on to reveal how she was in fact ‘spotted’ by Karan during her teenage years, when she was modelling.