and post-production, an additional three-day brief schedule took place from 18 to 20 October in Kochi. Mohanlal also joined. The film in its entirety was completed in 145 days shooting. Post-production The film's post-production took place in Mumbai, Chennai and Kochi. Mumbai-based company NY VFXWAALA provided the visual effects for the film. Prasad Sutar was the visual effects supervisor. An early estimate for the cost of visual effects during pre-production was 7 crore. The film without the computer graphics and actions scenes were used during the dubbing process. The film was edited by Johnkutty. The length of the screenplay matched with the runtime of the film and none of the scenes in the screenplay were to be removed while editing. The final mixing of the songs was undergoing in August 2018. Final cut was 167 minutes long. Soundtrack The background score for the film was composed by Sam C. S., making his debut in Malayalam cinema. The film also features five songs composed by M. Jayachandran, the lyrics were written by Rafeeq Ahamed, Lakshmi Shrikumar, and Prabha Varma. "Kondoram", a duet from the film was sung by Shreya Ghoshal and Sudeep Kumar, and written by Ahamed. The other four songs were sung by Ghoshal, Shankar Mahadevan, M. G. Sreekumar, and Mohanlal each. Jayachandran began composing the songs in June 2017. Composing took place at GreenPark hotel in Chennai. Mohanlal was also present during the time. Jayachandran composed the film's five songs in five days. For the song "Kondoram", lyrics were written after the tune was composed. Ahamed wrote the lines in a style resembling dialogue writing. Recording took place at Chennai (Musik Lounge Studio) and Mumbai. Shankar Mahadevan recorded the song "Nenjile" in August 2017. For scoring, Menon chose Sam after he was impressed by his work in Vikram Vedha (2017). Sam joined the film after the songs were already been composed. Scoring began in January 2018. Following his usual method, Sam composed the score beforehand based on the screenplay, contrary to the conventional method of scoring the filmed scenes during post-production. The musical score was then played while filming. Since the film had a period setting, old ethnic musical instruments of Kerala was utilised in the score. The film's theme music was chosen from four themes composed by Sam. Track listing Release Odiyan was released worldwide on 14 December 2018, released simultaneously with its dubbed versions in Tamil and