Development In May 2020, director
B. Unnikrishnan shared a picture of him having a meeting with screenwriter
Udaykrishna, cinematographer Vijay Ulaganath, editor
Shameer Muhammed and some technical crew for revealing that they are in the pre-production work of a film amid the
COVID-19 lockdown in India. In October, it was revealed that
Mohanlal would play the leading role in the film which has a rustic story where he plays the role of a villager. Filming was said to begin in mid-November after Mohanlal completes filming of
Drishyam 2. The film marks the first collaboration between Unnikrishnan and Udaykrishna. Unnikrishnan said that he, Mohanlal, and Udaykrishnan were originally working on another project with a dark subject. Its final discussion were going on before the shoot of
Drishyam 2, but with surging COVID-19 cases it became near impossible to shoot the film at that time which required to be shot at multiple locations. It was then Mohanlal suggested that they work on a "festive kind of film" as a change against the increasing number of darker films produced during that time and Udaykrishna developed a story that shaped into
Aaraattu. Unnikrishnan said that ₹30 lakh will be allotted for
COVID-19 precautions, and the film would have a larger than usual crew by
COVID-19 pandemic standards, which would take 60 days to shoot. Cast and crew agreed to work with a reduced remuneration considering the COVID-19 crisis. Unnikrishnan said that, in a normal scenario the film would have cost ₹30 crore. Title of the film was announced in November 2020. Vijay Ulaganath was reported as the cinematographer. The film was produced by the production houses
RD Illuminations, Hippo Prime Motion Pictures, and Movie Pay Media's.
Casting Aaraattu was Unnikrishnan's first film to feature as many as 45 characters. Mohanlal plays Neyyattinkara Gopan, whom Unnikrishnan describes as a "loud character from the get-go".
Filming . The crew planned to shoot the film in
Palakkad and
Hyderabad. Vijay Ulaganath was the cinematographer. The filming was done following the COVID-19 protocols and safety measures. The film began
principal photography on 23 November 2020 in Palakkad district. Shraddha Srinath joined the set on the following day.
Varikkasseri Mana served as a location for the film. Some significant portions were shot at
Ottapalam and
Ooty. The two day shoot at the
Palakkad Town railway station costs 23.46 lakhs for renting six
coaches from
Indian Railways. Mohanlal's character drives a vintage black
Mercedes-Benz 300SEL 6.3 with 2255 on the number plate, a reference to Mohanlal's iconic line from his 1986 film
Rajavinte Makan. Mohanlal completed his portion by 11 February 2021, with one day shoot left to be shot in March second week. Composer
A. R. Rahman appeared in a song sequence along with Mohanlal in March. It was filmed at
Chennai. Filming was completed in late March 2021. ==Music==