The makers have released the trailer for Thekku Vadakku, featuring Vinayakan and Suraj Venjaramoodu, which is set to hit theatres on October 4. In the film, Vinayakan portrays Madhavan, a retired KSEB engineer, while Suraj plays Shankunni, a sawmill owner. It is directed by Prem Sankar, who previously helmed Randuper, which was featured in the Competition Section of the International Film Festival of Kerala (IFFK) in 2017.

Thekku Vadakku's trailer opens with Suraj and Vinayakan leaving from the same bus, followed by Suraj expressing his contentment upon arriving at the court premises. Amidst his rant, we catch glimpses of Vinayakan around the court area. The trailer shows a long-standing feud between the two characters, seemingly rooted in a conflict that began three decades ago. It promises to be an entertaining exploration of male egos.

Thekku Vadakku also stars Kottayam Ramesh, Merin Jose, Melvin G Babu, Shameer Khan, Vineeth Vishwam, Sneha, and Sheethal in prominent roles. The film's technical crew includes music director Sam CS, cinematographer Suresh Rajan and editor Kiran Das. It is produced by Anjana Talkies in association with Odiyan director V A Shrikumar's VARS Studios. Thekku Vadakku is scripted by S Hareesh, based on his story Rathri Kaaval. Hareesh, a well-known literary figure, had earlier scripted Lijo Jose Pellissery films like Jallikattu (2019), Churuli (2021), and Nanpakal Nerathu Mayakkam (2022).