Starring : Dharmendra-Jaya Bachchan-Shabana Azmi
Ranveer Singh -Alia Bhatt
Plot
The Randhawa family is a matriarchal family who are the owners of Dhanlakshmi Sweets, named after Dhanlakshmi Randhawa. Her husband, Kanwal Lund, is amnesiac and wheelchair bound after an accident soon after his marriage. Their son, Tijori, is much like Dhanlakshmi, and they commandeer over their household, including Tijori's meek wife, Poonam, and their two adult grandchildren. During an award ceremony for Tijori, Kanwal mistakes a lady for a woman named Jamini. Rocky, Kanwal's grandson, finds a photograph of Jamini and starts looking for her.

Jamini is the grandmother of Rani Chatterjee, a famous television news anchor. Rani comes from a Bengali family whose mother, Anjali, is an English professor, and father, Chandon, is a professional Kathak dancer. Rocky and Rani decide to unite Jamini and Kanwal at the Randhawa house. Although initially confused, Kanwal eventually recognises Jasmini 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 multiple meetings between their grandparents during which they start their own relationship.

When Rani is questioned by Jamini about her relation with Rocky, she dismisses it as a fling. Rocky tries to propose to Rani as well, but after being rejected, decides to breakup with Rani. During a Kashmir trip, Rani realises her love for Rocky and returns to express the same. Because of the cultural differences between the two households, they decide to switch houses for three months, to break the patriarchal cycle prevalent in Indian society.

Rani tries to make the women of Rocky's family more independent by sending Poonam's singing clip to a contest and helping his sister, Gayatri (who is overweight and under-confident), secure a job, much to the anger of Dhanlakshmi and Tijori. Rocky finds himself being ridiculed by the Chatterjees for his lack of general knowledge. During the marriage of Vicky, Rocky's friend, Dhanlakshmi suggests a dance performance of Chandon. Chandon is laughed at by the crowd when he performs an effeminate Kathak dance during the ceremony. Rocky apologies and starts attending Chandon's classes.

At the Durga Puja celebrations, Rocky and Chandon dance together to "Dola Re Dola" which angers Tijori. During the confrontation that follows, Rani pushes Tijori aside which angers Rocky and both of them decide to end their relationship. Back at the Randhawa house, Tijori tries to hit Poonam during their argument, which angers Rocky, who decides to leave the household along with his sister and mother. Kanwal on witnessing the altercation recognises his son but eventually passes away. Jamini comes to pay her respects, and Tijori lets her do so despite Dhanlakshmi's protestation.

Few months later, Tijori, a changed man, visits the Chatterjee household and apologies to the family and proposes a