Plot

Flamboyant Punjabi Rocky and intellectual Bengali journalist Rani fall in love despite their differences. After facing family opposition, they decide to live with each other's families for three months before getting married.

Dhanlaxmi Randhawa is an arrogant business women who always considered her husband Kanwal a loser and never let her son Tijori get closer to him.Kanwal met with an accident and became bound to wheelchair for lifetime,years later he has some moments in his body and takes the name Jamini.The doctors ask the family to trace Jamini as it could help him recover his grandson Rocky whose very much closer to him traces Jamini Chatterjee and finds that her granddaughter is a popular anchor Rani Chatterjee.Rocky meets Rani and speaks about Kanwal to her and asks to confirm if her grandmother knew him,Rani does not take him seriously but Jamini revels the truth.Jamini and her family come to meet Kanwal after seeing her he is finally able to get up from his wheelchair and kiss Jamini which does not go well with Dhanlaxmi and her son Tijori.Rocky and Rani try to arrange meetings for their grandparents without the knowledge of their parents and become close to each other.When Rocky proposes Rani she rejects it saying it wasn't a serious relationship but while covering a news assignment in Shimla she realizes her love for Rocky.Rani returns back and revels her love for Rocky but Rani still hasn't planned for marriage as both their families have different mindset and culture.In order understand each others family they decide to live in either house and make a place in family.But Dhanlaxmi has already made her mind that she will never allow their marriage to take place.—alex.mjacko@gmail.com

The Randhawas are a Punjabi family who own the prosperous Dhanlakshmi Sweets, named after their matriarch Dhanlakshmi Randhawa (Jaya Bachchan). Dhanlakshmi was married into the Randhawa family to Kanwal, but Kanwal's mother never welcomed her into the house. Kanwal was more interested in poetry than the sweets business. So, after his mother's death, Dhanlakshmi took over the family business and took it to a turnover of Rs 2000 Crores.

Her husband, Kanwal Lund (Dharmendra), is amnesiac and wheelchair-bound after an accident. Their son, Tijori (Aamir Bashir), is much like Dhanlakshmi, and they commandeer over the household, including Tijori's meek wife, Poonam (Kshitee Jog), and his two adult children, Rocky (Ranveer Singh) and Gayatri (Anjali Anand). Dhanlakshmi was always bitter towards Poonam, much like her own mother-in-law was towards her. Rocky is an entertainer, but Tijori bullies him to not dance in public as he is the future CEO of Dhanlakshmi Sweets.

One day, when Kanwal mistakes a lady for a woman named Jamini (Shabana Azmi), Rocky finds a photograph of Jamini and starts looking for her. Rocky believes that the woman Jamini might be able to trigger Kanwal's memories. Dhanlakshmi is not in favor of helping Kanwal regain his memories and also always kept Tijori away from Kanwal. Rocky goes on the quest with his best friend and gym partner Vicky (Abhinav Sharma).

Internet search reveals that Jamini is the grandmother of Rani Chatterjee (Alia Bhatt), a famous television news anchor. Rani comes from an intellectual Bengali family whose mother, Anjali (Churni Ganguly), is an English professor, and father, Chandon (Tota Roy Chowdhury), is a professional Kathak dancer. Somen (Namit Das) is Rani's colleague, who has the hots for her, but she feels no chemistry with him. Anjali likes Somen. Rocky meets Rani at her office. Rocky explains how Kanwal remembered Jamini suddenly a couple of days ago and that she might be a trigger for his memories. Jamini remembers Kanwal and says that she met him for a week in 1978 at a poetry symposium. She felt like she met her soulmate, but they were both married at the time. So, they decided to get separated. Rani tells her that she has found Kanwal.

Meanwhile Gayatri has been rejected 50 times by prospective boys as she is blind and cannot speak good English. Tijori is rude towards her.

Rocky and Rani decide to unite Jamini and Kanwal. The meeting is kept at Rocky's house as Dhanlakshmi would never allow Kanwal to go out of the house. Kanwal eventually recognizes Jamini and kisses her in front of his family. It is revealed that they had a brief extra-marital affair back in 1978. Rocky and Rani set up meetings between their grandparents during which they start their own relationship.

Rocky tries to propose to Rani, but she rejects him, dismissing their relationship as a fling. Due to their fight, Tijori and Dhanlakshmi find out what Rocky and Rani had been doing with Kanwal and Jamini. Dhanlakshmi forbids Rocky from ever letting Kanwal meet Jamini again.

However, Rani eventually realizes her love for him. Because of the cultural differences between the two households, the two switch houses for three months to break the patriarchal cycle prevalent in Indian society. Dhanlakshmi allows it when Rocky promises that her decision after 3 months will be final for him. Meanwhile Rani also convinces her family to give Rocky a chance. Dhanlakshmi secretly tells Tijori that Rocky is in love and if not addressed, it will turn to rebellion. She promises that Rani will not survive one week in her house.

Dhanlakshmi is cold towards Rani. Rani tries to make the women of Rocky's family more independent, much to the anger of Dhanlakshmi and Tijori. She tells Poonam and Gayatri that their opinions matter in the house. She tells Poonam that she is a slave to Tijori. Rani befriends Poonam and learns that she was a great singer but gave up when she got married.

Dhanlakshmi Sweets share prices are tanking due to an ad campaign that was a smash hit in the 1980's. Rani points out that the ad campaign shows women in sexist and regressive roles as the only people who cook. She says that this is why women are boycotting the brand. She comes up with the idea to run a campaign that shows men in cooking roles with the tagline "New thinking, Same taste". Dhanlakshmi is now openly hostile to Rani. She says Rani thinks about herself first, while she thinks of the family. She will not allow Rani to marry Rocky. Rani accepts the challenge. Rani knows that Gayatri does stock trading and brings her to her office to meet her editorial team. Rani believes that Gayatri can do this professionally. Gayatri gets a job at the network, but Dhanlakshmi finds the offer letter in the mail. Rani enters Poonam in a singing contest, and she is selected. Poonam feels that Rani is using her to fight her battles, but Rani says that she wants Poonam to set a better precedence for Gayatri to follow.

Rocky finds himself being ridiculed by the Chatterjee for his lack of general knowledge. Rocky believes voting refers to Bigg Boss. His comments are borderline racist. They have no servants in the house and Rocky has to do everything himself. But Rocky doesn't know how to turn the gas on. Rocky is made fun of during the Chatterjee cultural event night, with all their friends. Rocky then goes shopping with Anjali, but she went bra shopping. Rocky is disgusted when he is made to try on a bra. But Anjali makes him realize that he does not treat women as equal and yet women have been washing men's underwear for centuries.

During a wedding ceremony for Rocky's friend, Chandon is laughed at by the crowd when he performs an effeminate Kathak dance. Rocky apologizes and endears himself to the Chatterjee by being willing to change his patriarchal ways. Rocky explains that this is how he was brought up his parents and grandparents, but he is very willing to learn. He also points out that the Chatterjees also have biases that they have applied on him, like he is racist, misogynist, and a bad English speaker. He says that he respects Chandon as he also likes dancing but never had the courage to stand up to his father like Chandon did. He also starts attending Chandon's dance classes.

The next time a family comes to see Gayatri, they leave due to Gayatri's weird behavior. When Tijori & Dhanlakshmi confronts Gayatri, she hits back saying that her weight issue is because of them. And due to 20 kilos of extra weight they never gave her any respect. She declares that she is joining her job and will only get married when she feels like it.

At the Durga Puja celebrations, Rocky and Chandon dance together to "Dola Re Dola," which angers Tijori. Tijori and Dhanlakshmi walk out in the middle of the Puja. Rocky follows and Tijori insult the whole Chatterjee family, by saying that the father is a dancer, mother a drinker and the grandmother a flirt. Rani, in a fit of anger, pushes Tijori. Rocky finds it disrespectful and the two end their relationship. Rani's family supports Rocky, but Rani is adamant. A man who could not support his mother, would never support him. Jamini says that her husband was abusive and used to hit her. He was disgusted by Chandon's dance. Yet Chandon is nothing like his father, the same way that Rocky is nothing like Tijori. Back home, Tijori tries to hit Poonam when she tries to assert herself and attends the singing competition. Seeing this, Rocky stands up to his father for the first time and decides to leave the household along with his sister and mother. Rocky tells Tijori that he can never be father to Rocky, as Tijori could never be a son to his own father. Kanwal finally recognizes his son Tijori but dies soon thereafter. Kanwal tells Tijori not to break up the home.

Tijori apologizes to Poonam, but she refuses his apology. She says that Dhanlakshmi only made him a man. But forgot that Tijori is also his father's son, a father to his own children, and a husband to his wife. When Dhanlakshmi stops Poonam, Tijori confronts Dhanlakshmi and asks her to speak to his wife properly. Tijori vows to earn Poonam's forgiveness. A few months later, Tijori, a changed man, visits the Chatterjee household to apologize. Rocky and Rani finally get married and Dhanlakshmi sends the secret recipe of their sweets to Rani, accepting her as a family member, but does not attend the wedding.