When Nambirajan's sister's would-be father-in-law insults him and challenges him to amass name and wealth, Nambirajan strives hard to become a powerful politician.

Amavasai (Sathyaraj) turns Nagaraja Cholan, a successful politician. Corrupt to the core, the movie begins from where the first part ended. He rises to become a Deputy Chief Minister. The tantrums and political game played by Nagaraja Cholan forms the movie's crux.