In the two-and-a-half minute video, Kangana`s outgoing character Payal overpowers the simpleton Maddy, played by Imran, 32.
The trailer was posted by the film`s producer UTV Motion Pictures on its official Twitter page.
"#KattiBattiTrailer starring #KanganaRanaut and #ImranKhan. Directed by @nickadvani. In Cinemas September 18th!" read the tweet alongside the video.
Kangana, 28, seems to be at ease playing an extrovert, while Imran`s character offers glimpses of his previous on-screen roles in films like "Break Ke Baad" and "Ek Mai Aur Ekk Tu".
"Katti Batti" is Imran`s first release post fatherhood.
He and wife Avantika welcomed their first child in June 2014.
The actor was last seen in `Gori Tere Pyaar Mein` opposite Kareena Kapoor Khan.
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