[2][12] The movie received positive reviews for the performances (especially Ranaut's and Rao's), story, direction, dialogues, production values, and cinematography.

It is revealed that she is imagining things; during electric shock treatment, she remembers that she threw the pesticide on the wife because she hallucinated a cockroach on her.

On 4 March 2018, producer Ekta Kapoor revealed the first two posters of the film on Twitter, each depicting the two leads - a cross-eyed Ranaut and Rao holding up his middle fingers to his eyes; Kapoor hinted at the theme of mental instability by captioning, "It's time to bring out the crazy in you... Because Sanity is overrated!

"[18] In an interview, writer Kanika Dhillon called the film a "quirky thriller" [19] On 5 March, Balaji Motion Pictures released two more first look posters, depicting both lead characters at crime scenes.

The following day, 6 March, another two posters for the film were released, with leads Kangana Ranaut and Rajkummar Rao posing in "quirky" and dangerous positions- a knife-wielding Ranaut in a water-filled bathtub surrounded by electronic gadgets at its edge, and Rao holding a butcher knife and cutting an apple, with blood seeping from his hand.

[2] The film promotions were also wrapped in controversy as the lead actress, Kangana Ranaut, apparently questioned a journalist[23] for his personal remarks about her and also Rani of Jhansi.

The incident took an uglier turn as the Entertainment Journalists' Guild of India decided to boycott[24] Kangana Ranaut until she issued an unconditional apology.

In June 2019, the film's title was changed to Judgementall Hai Kya due to objections from Indian Psychiatric Society (IPS) which filed a complaint to the Central Board of Film Certification (CBFC) claiming that the original title, Mental Hai Kya, trivialises mental health issues.

[3] Upon release, Judgementall Hai Kya received highly positive reviews from film critics, who praised the performances of Ranaut and Rao.

[30] Stutee Ghosh of The Quint gave 4/5 stars states "The movie is a deliciously addictive ride, showing the world through the eyes of someone who feels like a misfit", praising lead performances by saying “Kangana and Rajkummar Rao are right up there giving us a rare understanding of their characters emotional and physical state.

[32] Raja Sen of Hindustan Times gave 4/5 stars and felt that the slick, snappy looking comedy has more to offer, as a 'smart, significant satire'.

[34] Sreeparna Sengupta of The Times of India gave the film 3.5/5 stars, found Kovelamudi's narrative style as 'quirky and edgy'.

Praising performance of Ranaut, she termed it as "brilliant", as for Rao she felt that he fitted into 'his slightly macho, edgy persona like a glove'.

Concluding she opines, "Judgementall Hai Kya keeps the element of suspense alive all the way till the end, as it pushes the envelope as a dark, psychological whodunit, with a social message weaved in that can’t be ignored.

It treads into a zone Bollywood rarely ventures into", praising the lead actors saying "Kangana is a firecracker in Judgementall Hai Kya.

In conclusion, he opines, "Do give this one a try for its uniqueness, eccentricity, jaw-dropping moments, technical brilliance and Kangana Ranaut and Rajkummar Rao's phenomenal performances.

"[37] Shubhra Gupta of The Indian Express gave 3/5 stars and stated "This is the kind of movie which will sharply divide audiences.

I had problems with some of it, but I really liked the rest of it",praising lead performances saying "Rao plays his part with brio, and Ranaut hits all the notes perfectly".

And that helps the film tide over its less convincing bits and add up in the end to a strong, meaningful statement on the mental distress engendered by abusive relationships”.

[39] Rajeev Masand of CNN-IBN stated, "While you admire the attempt at originality, you can’t help feeling frustrated at just how it all comes apart in the end."

[40]Anna M. M. Vetticad of Firstpost gave the film 2.5/5 stars, found the plot to be confusing and stated that the makers have done very poor research on mental health.