In 2016, Kathir owns an event management company and is eager to outdo his competitors. He's in love with Geetha, but rarely gets time to spend with her or appreciate her due to his relentless pursuit of wealth. Gandhi "Gandhi" Mahaan and Kannamma are a happily married elderly couple who eloped from their village to marry against their families' wishes and settled in
Madras. Even now, Gandhi and Kannamma share a deep love for each other that's enviable to those around them. Kannamma, who works as a housemaid, desires a grand 60th wedding celebration like her boss's and shares this wish with Gandhi. Gandhi wants to fulfill Kannamma's dream and meets Kathir to arrange their 60th wedding ceremony. The grand wedding costs around , so Gandhi, a
zamin, takes his ancestral documents in
Coimbatore to Kathir to pay for the arrangements, having only managed to save from his watchman job PF. Gandhi, along with Kathir, Geetha, and Madhan, travels to Coimbatore to see the land and sell or mortgage it. However, they discover a construction is already underway on the land, and Kathir offers to help Gandhi by filing a case to retrieve the land. It turns out Gandhi's brothers forged and sold the land to builders. The builders are willing to pay , but Gandhi settles for . Eventually, he accepts , and the wedding arrangements begin after giving Kathir an advance of . The
Indian government's demonetization announcement renders the 1 crore received from the builder worthless, as it's unaccounted for. Kathir demands payment in new currency notes, but Gandhi struggles to exchange the old notes due to weekly limits and a lack of proper records. They try various means to exchange the money, including a money exchanger who offers a 20% commission, but things don't go smoothly. Gandhi goes missing, and Kathir eventually saves him from the goons who were beating him for his money. Kathir's frustration boils over, and he lashes out at Gandhi for prioritizing his wife's desire for a grand wedding over the well-being of those around him. Gandhi slaps Kathir for disrespecting his love for his wife. Kathir and Gandhi keep the money struggles a secret from Kannamma, telling her they're stuck in an accident. Meanwhile, Kannamma shows her selflessness by giving Kathir her savings of , meant for Gandhi's bike, to use for their 60th wedding. She also expresses that a simple marriage would suffice, prioritizing Gandhi's happiness over her own desires. This act moves Geetha, who confronts Kathir about his priorities. Geetha breaks up with Kathir, but they reunite after he opens up about his past and his drive to earn for their future. Kathir's perspective shifts, and he decides to focus on the marriage, but tragedy strikes when he finds Gandhi deceased. Kathir performs Gandhi's last rites, accepting him like a father. In a heart-wrenching turn, Kannamma goes missing the same night, leaving everyone worried. Nine years later, Kathir runs an orphanage called Gomathi Ammal Adharavatror Illam. A 5-year-old boy named Gandhi, whom Kathir had named in memory of the elderly Gandhi, goes missing from the orphanage. After a thorough search, the police call Kathir to inform him that the boy has been found. Kathir decides to adopt the boy, having searched for Kannamma all these years. In a poignant twist, it's revealed that Kannamma had died alone, mentally unstable and begging on the streets in
Kanyakumari, clutching a bag of cash and Gandhi's spectacles, with her pet dog, Tiger, near her corpse. == Cast ==