Though Katrina had brushed her lips with Gulshan Grover in her debut flick Boom (2003). It is shocking that Gulshan Grover became really uncomfortable in kissing newbie Katrina Kaif. In fact, what made it more difficult for him was when Amitabh Bachchan caught Gulshan Grover and Katrina Kaif Kissing in closed room. To know more watch the video.