Vinayakan and Suraj Venjaramoodu's Thekku Vadakku is set to hit theatres on September 20, announced the makers on Sunday along with a new poster. The film 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 stars Vinayakan as Madhavan, a retired KSEB engineer, while Suraj plays Shankunni, a sawmill owner. According to the makers, the upcoming film explores an "unconventional relationship" between these two characters. The screenplay is written by S Hareesh, based on his story Rathri Kaaval. Hareesh, a well-known literary figure, has also scripted for Lijo Jose Pellissery films, including Jallikattu, Churuli and Nanpakal Nerathu Mayakkam.

The cast of Thekku Vadakku also includes Kottayam Ramesh, Merin Jose, Melvin G Babu, Shameer Khan, Vineeth Viswam, Sneha and Sheethal, among others. The film's technical crew includes music director Sam CS, cinematographer Suresh Rajan and editor Kiran Das. It is backed by Anjana Talkies in association with Odiyan director V A Shrikumar's VARS Studios.