Director Rajkumar Periasamy is set to assemble an impressive cast for the eagerly awaited film ‘OM’ also known as ‘OM – Chapter 1: Udhiram – The Blood Wood’. The film stars renowned actors Mammootty and Dhanush, with an emotional narrative featuring complex character arcs. Sai Pallavi and Sreeleela are diligently preparing for their distinctive roles, raising excitement for its exceptional storytelling and talented lineup.