Naveen Darshan of
Cinema Express rated the film 3/5 and called
Thittam Irandu "a solid social drama, well-made thriller weighed down by needless red herrings."
Saibal Chatterjee of
NDTV lauded Aishwarya's performance, writing that her "unwaveringly focused lead performance [..] ensures that the film's rough edges are smoothened out to a certain extent."
Deccan Herald reviewer Roktim Rajpal stated that the film lacked a thrilling element that would've kept the narrative engaging. Rajpal, however, appreciated the film's climax, along with the performances and technical aspects.
Sowmya Rajendran writing for
The News Minute, awarded the film 2 stars out of 5, and opined that it is "a classic case of good intentions gone horribly wrong."
Firstpost critic Ranjani Krishnakumar who rated the film 1.5 out of 5 criticised the makers about being insensitive to spreading misinformation. "The only thing going for the film is that it holds up the suspense until the final reveal," she added.
Baradwaj Rangan wrote for
Film Companion, "What bothered me most about Thittam Irandu is that nobody seems to even be trying. Everything, including how the plot strands unfold, is very functional and generic. If someone wants to say something, they say just that very thing without trying to sound interesting or dramatic. There's no attempt to make the scenes lively or interesting, and there's a lot of audience-cheating." M Suganth of
The Times of India rated the film 2.5/5 and wrote "Thittam Irandu is largely okayish whodunit with a twist that is definitely something that we don't foresee, but the extent to which this twist works for you will decide how favourably you might look at the movie in the end." Janani K of
India Today also gave the movie 2.5 out of 5 stars and wrote "Cinematographer Gokul Benoy's work is quite impressive. Since most of the scenes are shot at the night, the lighting plays a major role and it surely enhanced the feel of the film. Sathish Raghunathan's music and background score were apt for the film." Manoj Kumar R of
The Indian Express noted "The grave failing of Vignesh Karthik is that he fails to make the audience care for what's going on in the film." ==Controversies==