Thiru Thiru Thuru Thuru

Srinivasan's ad agency is floundering and hopes for a big win with Johnson & Johnson. During the client meeting, Arjun's mischievous behavior disappoints the clients and jeopardizes the deal. Frustrated but determined, Srinivasan decides to fund the ad himself if the execution is flawless.

Srinivasan commits his own money to produce the ad, accepting the risk of a loss if things go wrong. The condition is that the project will be deemed successful only if every aspect meets the clients' expectations. He bets everything on delivering a perfect ad to salvage the business.

The baby scheduled to act grows ill, threatening to derail the shoot. Arjun and Archana scramble to find a replacement child without delaying production. The team faces a tight timeline as illness disrupts the planned schedule.

While searching for a substitute, Arjun spots a cute baby on the road and approaches the mother, who initially refuses to part with the child. In the ensuing tension, the mother suffers an accident, complicating the situation further. Arjun now has to secure the baby and protect him.

Arjun rushes the baby to the client to secure approval while the mother is hospitalized. When he returns to the hospital, the mother has vanished, leaving the baby in his care. The team proceeds with the ad shoot, but the client demands a written no-objection from the baby's parents within three days.

Arjun and Archana discover that the woman posing as the baby's mother is not the real parent, but a baby stealer. They travel to Pondicherry to track down the rightful parents and gather the necessary proof. They obtain information about the real family using non-violent means.

The kidnapper's boyfriend appears, demanding twenty lakh rupees to return the baby. They trick Arjun and Archana by posing as the real parents, complicating the mission. The chase intensifies as the stakes rise.

Arjun and Archana head toward a remote location to resolve the custody and money dispute, but tensions erupt. They end up fleeing with the baby when something goes wrong, trying to escape from the kidnappers and the police closing in.

The three-day deadline for the no-objection agreement expires. Srinivasan admits he cannot deliver and quits the project. Meanwhile, Arjun and Archana are taken by the police as potential kidnappers, marking a critical turn in the investigation.

Arjun and Archana arrive with the signed no-objection document and reveal the ad shot with the baby to prove their innocence. The police realize they are not kidnappers and clear them of suspicion. The revelation validates their actions and turns the tide of the investigation.

The real baby's parents see their child safe and prominently featured in the ad and sign the agreement. With the confusion resolved, the project finally receives client approval. The family is relieved and grateful for the happy outcome.

With the crisis resolved, Arjun and Archana confess their feelings and unite. The project succeeds, the baby is safe, and their relationship reaches a new, hopeful chapter alongside the professional triumph.