Aachariyangal (English: Surprises) is a 2012 Tamil fantasy suspense thriller film written, produced and directed by debutant director Harshavardhan, starring Thaman Kumar, Iyshwarya Rajesh, Reethu Mangal and Narayanan. The film released on 24 August 2012.
The team of the film met actor Kamal Haasan in July 2012, with the director Harshavardhan being an alumnus of Kamal Haasan's 2009 screen-writing workshop.