Project K is tentatively scheduled to be released in cinemas in the second quarter of 2024. In July, Padukone and Prabhas shot for a car chase sequence in Hyderabad. In June, Amitabh Bachchan shot for a scene at Raidurg metro station. 90 per cent of the shoot is being done in Ramoji Film City. Prabhas was expected to start filming his solo portions in April 2022, however, his knee surgery led to a delay of his upcoming projects including Salaar and Project K. DIY Arri Alexa camera is being used to shoot the film, thus making Project K the first Indian film to use this technology. Therefore, the production of Project K is expected to take longer than usual. This would allow the production team to take time and prepare the gadgets and property to be used in this science fiction film. Instead of shooting the entire film in a single stretch, the team divided its 80–90 days of shoot into 7–8 days every month. Second schedule of the shoot took place in February 2022. Prabhas and Padukone joined the production in December 2021 and scenes featuring Bachchan, Prabhas and Padukone were shot. Principal photography commenced in Hyderabad in July 2021 on the occasion of Guru Purnima, following a Muhurat shot featuring Bachchan. Initially, the film was planned to begin its regular shoot in November 2020, however, it was postponed to the following year due to the advent of the COVID-19 pandemic. The film is simultaneously shot in Telugu and Hindi languages. Project K is estimated to be mounted at a budget of ₹500 crore, making it one of the most expensive Indian films ever made. In July 2021, the makers have erected a futuristic set at Ramoji Film City in Hyderabad where a significant portion of filming is expected to take place. A few days later, Mahindra responded that their company Mahindra & Mahindra would assist the production team from their Mahindra Research Valley campus at Chennai. In March 2022, Ashwin requested businesman Anand Mahindra to provide technical support to the build such type of vehicles. While they can be recreated using computer-generated imagery (CGI), Ashwin wanted them to feel 'authentic and genuine,' therefore opted to build these vehicles from scratch with a dedicated team of engineers. Pre-production Īshwin stated that Project K needed high-end technology and futuristic vehicles to be developed for the film. Project K serves as the working title of the yet-untitled film.

Veteran filmmaker Singeetam Srinivasa Rao joined the project to serve as a mentor. Meyer and cinematographer Dani Sanchez-Lopez. However, in January 2021, Ashwin retained technicians from his earlier film Mahanati (2018), namely, music composer Mickey J. Rahman was initially approached to compose music for the film. In May 2022, Disha Patani joined the cast, marking her return to Telugu cinema after Loafer (2015). Ashwin stated that his role was 'so important that his character's name was the working title of an early draft.' The film would be Bachchan's first full-length role in a Telugu film, following his previous cameo appearance in Manam (2014) and Sye Raa Narasimha Reddy (2019). In October, veteran actor Amitabh Bachchan was cast in a full-length role in the film.

Bollywood Hungama reported that Padukone's role was initially 'not substantial' but was improved to suit her stardom. Padukone felt that she was 'beyond thrilled' to join the production while Ashwin stated that her character would be 'surprise' as it was something which 'no mainstream lead has done before.' The film marks Padukone's debut in Telugu cinema. In July 2020, Hindi film actress Deepika Padukone was signed to play the lead role opposite Prabhas. It is intended to mark 50 years since the establishment of their studio. In February 2020, Hyderabad-based Vyjayanthi Movies, one of the largest production houses in Telugu cinema, announced that their next film production would be helmed by director Nag Ashwin, starring Prabhas.

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