Director Pandiaraj’s son Prithvi, who has acted in a couple of films, is now turning into an action hero with his upcoming flick, Therku Maasi Veethi, directed by Mukil. The film will go on floors on Wednesday. As the film is an action-centric, Prithvi undertook special training in horse riding, boxing and followed a strict exercise regime. Ishitha Sharma from Mumbai and Devika from Kerala play as heroines. The shooting will take place in Madurai and Chennai.