The film, which is due to start its first schedule during June 2008, has been built up as the final instalment in Gautham Menon’s police trilogy, following his two earlier ventures, Kaaka Kaaka; which Ajith Kumar was originally meant to be a part of and Vettaiyaadu Vilaiyaadu. However other indications suggest that the film is the remake of the classic, Pudhiya Paravai starring Sivaji Ganesan, which Ganesan’s son, Prabhu, who is the producer for the project denied. The film earlier rumoured to be titled, Kanavugal Karpanaigal or Vaanam Kadandha Siragugal, was finalized with the title of Surangani.
Prabhu Ganesan, also co-producer for the film under Sivaji Productions, cast himself to play an important role in the film. Whilst, Gautham Menon selected Sameera Reddy, who had portrayed the lead female role in his previous film, Vaaranam Aayiram to star opposite Ajith Kumar in the film. Sameera appears along Ajith Kumar for the first time, despite previously being entitled to appear opposite him in Citizen, which eventually went ahead without her. The other members of the cast and technical crew are being finalized.