After the success of
Ethir Neechal (2013), it was announced that the same team including producer
Dhanush, director
R. S. Durai Senthilkumar and actor
Sivakarthikeyan would collaborate for another venture. The film was initially titled
Taana, and when asked about whether the film would undergo a name change, Sivakarthikeyan clarified that the production unit was thinking of various possibilities and that if a suitable title did not come up,
Taana would be retained. However, it was changed to
Kaaki Sattai, after a
1985 film. The producers of the 1985 film were approached to obtain the rights for the title. Senthilkumar revealed that he had written the script keeping Dhanush in mind while working as an assistant director for
Aadukalam (2011). He narrated the script to Dhanush but failed to materialise; after Sivakarthikeyan was cast, he tweaked the script to suit Sivakarthikeyan's
comic timing.
Sri Divya, who last paired with Sivakarthikeyan in
Varuthapadatha Valibar Sangam (2013), was again selected as the lead actress. She interacted with nurses to prepare for her role of a nurse. Vinu Damodar, a
Koothu-P-Pattarai actor, was selected to play a small but significant role, making his film debut.
Manobala was selected to play a supporting role, in his first collaboration with Sivakarthikeyan. Sivakarthikeyan said the film would, in contrast to the films of modern Tamil
action heroes, feature realistic stunt sequences.
Principal photography began on 6 March 2014 at
Pammal. By May 2014, the film completed 12 days shooting in an apartment in and around
Chennai. By June 2014, significant portions had been completed, and some sequences were shot at
Binny Mills. In September 2014, filming took place in
Norway. Filming
wrapped later the same month. == Music ==