Thalai Nagaram

Subramaniam alias Right (Sundar C) is a rowdy in North Chennai. He runs a separate gang and also works as a sidekick and right-hand man to a big don named Qaasim Bhai (Judo. K. K. Rathnam). Qaasim Bhai uses Right and his gang as professional killers whenever required. The ACP Ravi kumar (K. S. Ravikumar) believes in his own type of law by eliminating criminals instead of wasting time by the court and other procedures. Divya (Jyothimayi) a student, surprisingly enters into Right's life and takes shelter in his house. However, things change after she enters his life; both of them fall in love. At a situation, there arises a clash between Right and Qaasim Bhai. Right's friend Balu (Bose Venkat) kills Qaasim Bhai's son Nassir (Vikas Rishi) for ordering a trucker who rams a convoy which killed innocent children instead of only killing the intended target. Unfortunately, Balu is killed by Qaasim Bhai for killing his Nassir. After seeing Balu's death, Right decides to change his lifestyle.

Parralel narration is the comedy track of Naai Shekar (Vadivelu), who wants to become a criminal and Divya's supposed uncle.

For Right's surprise enters a corrupt ACP named Gopinath (Prakash Raj). He is on a hell bent quest to eradicate crime. He dislikes Right's attitude to leave the underworld and threatens Divya, who is molested in prison. After coming to know of this, Right decides to eliminate all of his foes once and for all. He hatches a plan and orders a sniper shooter (Vichu Vishwanath) to kill the police inspector of the station. He also orders a trucker (G. K.) and kills the lady inspector. Right kills Gopinath and then plans to kill Qaasim Bhai for Balu's death. Qassim Bhai arrives at the hotel, where he sees his wife's wristwatch in the bedroom, which was previously gifted to him by the corrupt MLA (Delhi Ganesh). Qassim Bhai mistakenly kills the MLA for having affair with Vaani. Right then strangulates Qassim Bhai when he arrives at the basement to board his car. Finally, Right arrives at the dock for a getaway with Divya only to be killed by a battalion of cops due to the betrayal by Sashi (Sashikumar), his own fellow gang member.

The music composed by D. Imman.[3]

The film collected a distributor share of Rs 4 to 5 crores at the box office.[4]

A dialogue from the film, Trisha illana Divya (If not Trisha, then Divya) spoken by Vadivelu attained popular usage across Chennai after the film's release. The dialogue also inspired the title of Adhik Ravichandran's Trisha Illana Nayanthara (2015), in which the main character adapts a similarly flexible attitude regarding his choice of lover. Also another dialogue "Building strongu, basement konju weak" became very popular, which was later adopted in Vadivelu's few other films in his comedy tracks.

The dialogue "Aei ennaya vechi comedy kemedy panalayae" (Hey Are you making fun or trolling me?) also become famous and used in many movies and memes later for its modulation. A dialogue spoken by Vadivelu, "Naanum Rowdythan" (I too am a rowdy) later inspired the title of a movie Naanum Rowdy Dhaan.

• Thalai Nagaram on IMDb
• "Thalainagaram. Thalainagaram Movie Cast & Crew". bharatmovies.com. Retrieved 18 September 2010.