Development In early July 2022,
Arya was reported to team up with
M. Muthaiya for his next project after the former finishes his commitments to
Captain and the latter finishes his to
Viruman, which both was in post-production works at the time. The project was reported to be funded by Vedikkaranpatti S. Sakthivel under Drumstick Production, the principal photography was reported to commence in August that year and
R. Velraj would be the cinematographer. On 10 October, the project was officially announced by Drumstick Production, who co-produced it with
Zee Studios. It was
tentatively titled as
Arya 34, as it is Arya's 34th film in the lead role. A traditional
muhurat puja was held in
Chennai, with stills releasing the same day as the announcement.
G. V. Prakash Kumar would compose the score, while Velraj and Veeramani would handle the cinematography and production design, respectively. On 10 December, the official title of the film was unveiled as
Kathar Basha Endra Muthuramalingam by 8 prominent Indian celebrities such as
Gautham Vasudev Menon,
Vishal,
Karthi,
Santhanam,
Jiiva,
Arun Vijay,
R. Madhavan and
Venkat Prabhu.
Casting Siddhi Idnani, who made her Tamil debut through
Vendhu Thanindhathu Kaadu (2022), was cast in as the female lead opposite Arya. B. S. Avinash (in his Tamil debut), R. K. Vijay Murugan,
Madhusudhan Rao, and Tamizh were announced to be a part of cast. They played the role as antagonists. Veteran actors
Prabhu and
K. Bhagyaraj were cast to play important roles.
Singampuli,
Renuka,
Aadukalam Naren, and
Viji Chandrasekhar would appear in other pivotal roles.
Filming Principal photography commenced on 9 November 2022, with the first schedule in
Kovilpatti. The schedule was halted due to heavy rain in the state, but continued a week after. == Soundtrack ==