Namma Veettu Pillai 2019

Arumponn Sivakarthikeyan is a village youth from Tirupathur who shares a deep bond with his beloved step-sister Thulasi Aishwarya Rajesh. A puberty showering function for Thulasi becomes a flashpoint, as his maternal uncles disregard her, and even his paternal uncles view Thulasi as a burden on the family. The only people who stand by them are his grandfather Arunmozhivarman and his cousin Soori, who keep faith with the family despite mounting pressure from kin.

Arumponn develops an affection for Maangani, his maternal cousin Anu Emmanuel, even as her father disapproves. He also tries to secure Thulasi’s future by arranging an alliance, but the maternal uncle’s disapproval blocks the plan and Thulasi’s engagement is called off.

A deep-running feud with Ayyanar Natarajan Subramaniam—a ruffian and his uncle—simmers after Arumponn and Paramu challenge him, leading to conflict over forceful actions around liquor hoarding and land deals pursued through a court order. In retaliation, Ayyanar decides to marry Thulasi. On her insistence and with her mother’s backing, Thulasi’s future is protected, and Arumponn reluctantly agrees to the marriage.

The film then reveals a long-buried truth: Thulasi is the adopted daughter of Dharma, raised by Chandrabose Samuthirakani after Dharma’s death, and Arumponn’s late father. Chandrabose later dies while trying to save Esakki, Thulasi’s biological brother, from electrocution caused by enemies of Chandrabose.

Tensions escalate when Thulasi is falsely arrested for Ayyanar’s illegal liquor hoarding. When confronted, Ayyanar strikes Thulasi, and Arumponn responds with force, delivering a brutal beating to his brother-in-law in retribution. Paari, Ayyanar’s close ally, arrives with men to seek vengeance, and in a drunken stupor, Ayyanar kills Paari accidentally. Paari’s men pursue Ayyanar, but Arumponn and Thulasi manage to rescue him and hand him over to the police.

To end the bloodshed, Arumponn, his mother, and his sister surrender to the panchayat of Paari’s village. He speaks of the hardship of growing up without a father and proposes a peaceful resolution: he offers to marry Paari’s widowed wife so that Thulasi does not become a widow. Paari’s widow praises Arumponn’s good nature, and the faction agrees to lay down their weapons in favor of reconciliation.

During the closing credits, it is suggested that Arumponn, Thulasi, and his mother have reconciled with the rest of the extended family. Ayyanar is released on parole to attend Thulasi’s seemantham (baby shower), and it is implied that he has made peace with Arumponn. The film ends on a humorous note as Arumponn breaks the fourth wall, mimicking his grandfather Arunmozhivarman.