Sidharth Malhotra and Katrina Kaif come across as one of the hottest onscreen couples. The duo will be seen romancing in Nitya Mehra’s ‘Baar Baar Dekho’. While working together, Sidharth just could not stop praising his co-star. The actor says, “Katrina is a very hardworking girl and always gives her 100 percent. Even if she is not well, Katrina has a lot of dedication. We even used to even go to the gym together, when on outdoor shoots. It has been very, very exciting.” ‘Baar Baar Dekho’ is a love story with some ‘hatke’ romance, promises Sidharth.