The slum shown in this film is actually a set work done by the Ace Art Director T. Muthuraj done over 7.5 acres of land. And another interesting thing is that the over bridge shown behind the slum was actually built using the materials needed to build an exact original bridge- only thing being only a portion of the bridge was built and rest was filled up by CGI. And any trees found in the slum was actually brought and grown in the slum to give a realistic feel to the slum. Even the waste products and dumpings in the slum are real waste brought from a dumpyard to give the realistic feel.
This is the Tamil movie debut for Fahadh Faasil.
Sivakarthikeyan's voice is dubbed with Marathi accent in the Hindi dubbed version.