Why is 'Kabali' villain back in Chennai?

Taiwanese actor Winston Chao, who had shot along with Malaysian actor Rosyam Nor Ranjith's Kabali in Ecr, Chennai in January this year, is back in the city for the dubbing of the film. The film, directed by Ranjith had most of its shoot canned in Malaysia and Winston Chao plays one of the villain.
Producer Kalaippuli Thanu tweeted,

It is expected that Winston, who has acted with Jackie Chan, will be the main villain in Kabali.The film is a crime drama directed by Pa Ranjith and the star cast for the film includes Radhika Apte, Kishore, Kalaiyarasan, Dhansika and Dinesh Ravi. With the teaser garnering new milestones, it is one of the most awaited film of the year.