Actress Alia Bhatt made a silly but endearing goof up during a recent interview while promoting her upcoming film ‘Kalank’.A video is going viral on social media platforms that shows her with the film’s other cast members-Varun Dhawan, Sonakshi Sinha and Aditya Roy Kapur. In the video, Varun Dhawanis seen fiddling with Alia Bhatt’s hair bun. Irritated by his antics, Bhatt tells him to quit it but makes one cute mistake. “Ran…! Uh, Varun don’t,” she says, confusing his name with her boyfriend and actor Ranbir Kapoor’s. Her co-stars break into a fit of laughter and she hides her faces in embarrassment.Another video from the same video shows Bhatt laughing hard at Aditya Roy Kapur’s impression of a drunk man at a party. Her unrestrained laughter got a lot of love online. “LMAO! LOL.Alia’s laugh is contagious! Seen it too many times,” wrote a fan. In the video, Varun Dhawan is seen fiddling with Alia Bhatt’s hair bun. Irritated by his antics, Bhatt tells him to quit it but makes one cute mistake. ‘Ran…! Uh, Varun don’t,’ she says, confusing his name with her boyfriend and actor Ranbir Kapoor’s“Alia’s laugh makes me laugh,” wrote another. “I really love Alia’s laugh. It’s so loud and hilarious. I relate,” Tweeted a fan.Bhatt’s ‘Kalank’ is directed by Abhishek Varman and releases tomorrow (Wednesday). It also stars Madhuri Dixit-Nene and Sanjay Dutt and is Dhawan and Bhatt’s fourth film together after ‘Student of the Year’, ‘Humpty Sharma Ki Dulhania’ and ‘Badrinath Ki Dulhania’. Bhatt said that the credit for their successful pairing goes to the writers and directors they have worked with.“I don’t think Varun and I can take much credit when it comes to reinventing our pairing on screen. Honestly, it is in the writing and the director’s vision that comes to us and we just execute it. We execute it with a lot of passion and zest because both of us want to bring something new and give a different face to each other.Every time we work together I have this separation anxiety that now maybe we won’t get a chance to collaborate. And then we are working together in next two weeks,” she added in an interview.