Preity Zinta took to Instagram on Tuesday to share a post on the completion of 20 years of her film 'Mission Kashmir'. "My first film with Hrithik (Roshan) and...start of...incredible friendship," she wrote while sharing a song from the film. Preity also thanked the entire cast and crew of the film, including director Vidhu Vinod Chopra and co-actor Sanjay Dutt.