Vijay Sethupathi was very excited to share screen space with Dhanush in Vada Chennai after Pudhupettai. Though he had a minor role in Selvaraghavan’s film, he has grown as a star in his own right since then.
He was playing a major role in Vada Chennai, however he has apparently opted out citing date issues. Vijay Sethupathi has multiple projects underway so setting aside dates may have been an issue.
Vada Chennai started a while back but has been delayed due to various reasons. Meanwhile Dhanush got busy with his own directorial Power Paandi. Vada Chennai is directed by Vetrimaaran and is a trilogy. Amala Paul, Andrea and Kishore play significant roles in the film.