Kosaksi Pasapugazh. Venkat and Senthil then confront and threaten the "imposter" who, in confessing that he is the real Pari, inadvertently reveals to them that the acquaintance they knew was actually nicknamed "Pappu," the son of the Pariventhan family's gardener, who had an immense passion for learning. Pari made Pappu do all of his homework and, after Pari's father found out, he let the ruse continue, saying he didn't want his son to experience the same disrespect he experienced due to his illiteracy. Pari went to London for four years, while Pappu assumed his identity in college, promising to sever ties afterward. However, Pappu warned Pari that his friends would come looking for him after some time. Venkat and Senthil leave with Srivatsan for Dhanushkodi, where Pari apparently works at a school. During their final years of college, Pari and Ria begin a relationship. One night, Pari sneaks into Virus' house to propose to Ria while Venkat and Senthil drunkenly urinate on Virus' letterbox. Virus threatens to rusticate Senthil unless he acts as a witness against Pari. Not wanting to disappoint his family or betray his friend, he jumps out of a window, attempting suicide. Pari, Senthil, and Ria all help him recuperate successfully over the next two months while Virus rescinds his rustication. Afterwards, Senthil secures a job with an engineering firm and Venkat convinces his father to let him work as a wildlife photographer. Virus barber thus shaves his mustache off. Virus feels insulted and rigs the final exam paper to fail Senthil, but Ria gives Pari the duplicate key to her father's office, encouraging him to copy the rigged paper for Senthil. In the present, Venkat and Senthil suddenly remember Ria, and turn around to reach her wedding to Rakesh in Coimbatore. Venkat sneaks in to reunite with Ria while Senthil poses as a housekeeper to show Rakesh is still a materialistic brat. Ria however, initially refuses, despite hearing Rakesh yell about the coat Senthil ruined. Senthil proceeds to fill in as the groom and convinces Ria that she still loves Pari. Ria elopes with the duo and Srivatsan to go to Dhanushkodi and meet Pari. Back in their final year of college, Pari and Venkat successfully copy the question paper, but Senthil refuses to use it. Virus discovers them and rusticates them in the middle of the night. Ria reveals that Virus' son, who Virus thought