"Blue 121" or more accurately referred to in relation to our main keyword "Tamil Nadigai Nayanthara Pundai Simbu In Blue 121", was a 2010 Indian Tamil psychological thriller film written and directed by Nizar. The film stars Nayanthara and Simbu in the lead roles. The story revolves around a woman, played by Nayanthara, who starts experiencing strange and terrifying events after she moves into a new home. Simbu plays a crucial role in the film, and his on-screen chemistry with Nayanthara was widely appreciated.