Eventually, he comes to realize that the inspector he is working for is now collaborating with the bar owner after being promised a large sum of money as commission in return for permission to run their illegal businesses.

[5] Manikandan introduced Anucharan to Jayaraman, a former assistant, who had worked with actor Rajinikanth for 24 years and who decided to produce the venture along with his friends Prithiviraj and Rajendran as he liked the script since it was "contemporary" and had a message for society.

[5] Reshmi Menon signed on to portray the female lead in the film, although she was initially apprehensive as she felt that the role—a typical North Madras woman, sporting a "no-makeup" look and talking "proper Tamil"—was "very much outside my comfort zone".

Topping the soundtrack is "Naanal Poovaai" that has a curiously ethereal sound (which becomes more evident and interesting in the karaoke version) and K uses the vocal interplay between himself and Janani to beautiful effect".

[12] Musicaloud.com gave a score of 8.5 out of 10 and similarly wrote that the music had "something of a Santhosh Narayanan/Sean Roldan type quality to it", but went on to add that it was not "a matter to complain about" and that the soundtrack "definitely ranks among K's top works".

[18] The Times of India rated the film 3.5 out of 5 and wrote "What makes Kirumi stand apart from other thrillers set in the backdrop of crime is its understated quality.

[19] Bangalore Mirror rated the film 4.5 out of 5 and wrote "For a debutant, Anucharan shows a lot of maturity as well as expertise and clearly proves to the audience that he is a new kid on the block who is worth watching".

Well shot, well edited and brilliantly enacted by most of the lead actors, debutant director Anucharan gives us a bunch of fully flesh-and-blood characters with whom you can quickly relate to", describing the film as "pitch perfect".

[14] Malini Mannath of The New Indian Express wrote, "Kirumi is an example of how a script can be worked within the parameters of commercial cinema and also can be made entertaining without losing sight of reality and reason".

[22] Behindwoods rated the film 2.5 out of 5 and wrote "Kirumi is one of the better stories that you have come across in recent times, but its execution should have been on par with the smartness in the script" and called it a "safe one-time watch".