Tamannaah Bhatia got emotional while shooting Chhathi Maiya song for The Vvaan. The actor spoke about Chhath Puja and Bihari culture at the film's trailer launch.

The Vvaan trailer introduces Sidharth Malhotra and Tamannaah Bhatia inside a forest ruled by fear, faith and supernatural forces. It sets up a clash between the Vvan Devi temple and development plans while hinting at a past-linked transformation.