- The film is based on an incident that happened to a jeweller in Thrissur.
Thankam was announced in October 2019. - Principal photography commenced on 29 May 2022, with the updated cast of Biju Menon and Vineeth Sreenivasan in the lead roles. Filming was completed on 2 September 2022.
- The first look of the film was released on 10 December 2022 hinting that the film would hit screens sometime in 2023.
- Thankam marks the last film acted by Kochu Preman. The film was released as a tribute to the veteran actor.
- Thankam was released theatrically on 26 January 2023 by Bhavana Release. The film received positive reviews from critics and audiences.