Koodal Nagar movie story is set in a suburb of Madurai. Suryan (Bharath) and Chandran (Bharath) are twins. Suryan, the elder of the two is soft spoken guy who works at a local lending library and he falls in love with Manimekala (Bhavana), daughter of Namasivayam (Mahadevan) the local politician-don and MLA. Chandran, the younger one, works as a mortuary assistant in the local government hospital and he's one among Namasivayam
| Actor | Role |
|---|---|
 Bharath SrinivasanSuriyan | Suriyan |
 BhavanaManimekalai | Manimekalai |
 SandhyaTamizhselvi | Tamizhselvi |
 RamarajuNamasivayam | Namasivayam |
 IlavarasuNot listed | Not listed |
 ManobalaDoctor | Doctor |
 Meera KrishnanNot listed | Not listed |
 Periya Karuppu ThevarNot listed | Not listed |
 ThennavanNot listed | Not listed |
 Bava LakshmananNot listed | Not listed |