Hara Hara Mahadevaki is an upcoming Indian Tamil language adult romantic comedy film written and directed by Santhosh P Jayakumar. The film features Gautham Karthik and Nikki Galrani in the lead roles, while Balamurali Balu composes the film's music. Produced by Thangam Cinemas and Release by Studio Green, the venture began production in November 2016.
The film began with a ceremony in November 2016, with Studio Green and Thangam Cinemas revealing that they would be financing a film directed by newcomer Santhosh Peter Jayakumar, featuring Gautham Karthik and Nikki Galrani in the lead roles. Titled Hara Hara Mahadevaki, the launch was also attended by Rajendran and Ravi Mariya.