Actor Varun Dhawan says that his co-star Anushka Sharma baffles him with her intelligence and captions.Varun on Friday took to Twitter, where he shared a photograph of himself along with Anushka from the sets of "Sui Dhaaga"."Anushka Sharma baffles me with her intelligence and her captions. Made in India. Last schedule. We are working very hard," he captioned the image.In "Sui Dhaaga", Anushka will be seen essaying a self-reliant embroiderer.The film is produced by Maneesh Sharma under the Yash Raj Films banner. It is written-directed by "Dum Laga Ke Haisha" helmer Sharat Katariya.The film is slated to release on September 28.