Praising Sonam's fashion sense, he said, "Pretty good. In fact, she is very talented and a style icon."
"I keep on taking tips from her how to dress up and all," he said in an interview.
The actor is also impressed with Ayushmann's chivalry and complimented him by calling him a thorough gentleman.
When asked Ayushmann about it, the 28-year-old said, "I don't know how to react on that, but yes, she is very sweet. And if your co-actor is sweet, then you automatically become a gentleman."
The much hyped big banner film is a romantic comedy which is being directed by Nupur Asthana and the story has been written by Habib Faisal.
The crew will start shooting for the second schedule of the film after the release of Ayushmann's upcoming flick 'Nautanki Saala' which is all set to hit the silver screen on April 12.