Director Ashwath Marimuthu has confirmed his next film, tentatively titled STR51, will star Silambarasan TR. Marimuthu, known for "Oh My Kadavule," revealed he is writing the script and filming will begin in parallel with Silambarasan's current project, "Arasan." The director also clarified that recent speculation about him directing Rajinikanth's "Thalaivar173" is untrue. That project was previously linked to director Sundar C, with Ramkumar Balakrishnan now rumored to be in talks.