Bollywood actor Sidharth Malhotra, who was last seen in the spy-thriller film 'Mission Majnu', appeared on the streaming chat show 'Koffee With Karan' along with actor Varun Dhawan, and the two had an absolute blast on the episode. During the episode, Sid took a dig at Karan about how hard the director was with him and Varun during the making of 'Student of the Year' which served as a debut vehicle for Sid, Varun and Alia Bhatt.