"PK" actor Aamir Khan, who is set for an image make-over, is now getting ready for an action-thriller movie to be directed by South film-maker Shankar.

It is said that Shankar, who has the history of making mass hero movies packed with good messages, has a similar story in store for Khan.

As per the buzz, the Shankar directorial, which is already in the pre-production stage, is being scripted by Honey Irani. The Perfectionist of B-town will reportedly be playing the role of a vigilante.

However, there were reports that it would be a remake of Shankar's earlier film, "Enthiran – The Robot". But Honey Irani has denied the rumours recently and clarified that it is not a sequel to Rajinikanth's sci-fi thriller.

When asked about the plot details, "It will be unfair of me to reveal details of the plot. Let Shankar make an official announcement. All I can tell you at this point is that I'm not writing Robot 2," scriptwriter Honey Irani told the Mumbai Mirror.

Aamir Khan's 'PK'
Meanwhile, Aamir Khan is getting ready for "PK" release. The Hindi movie will release worldwide on 19 December. The movie, which features Anushka Sharma in the female lead role, is directed by Rajkumar Hirani.

Shankar  and Aamir Khan
Director Shankar and Aamir Khan.Shankar's Website/Varinder Chawla

Shankar's 'I'
In the mean time, Shankar is busy with his prestigious "I", starring Vikram and Amy Jackson. The mega-budget film, which is produced by Aascar Ravichandran, will release in January 2015. This film will be dubbed in Hindi and the audio of the Bollywood version will be out in December.