This is the story of a rich family – The Raichands. Yashvardhan Raichand (Amitabh Bachchan) and his wife Nandini (Jaya Bachchan) have raised their sons Rahul (ShahRukh Khan) and Rohan (Hrithik Roshan), showering them with great love and affection. Yash is deep rooted in values that he has imbibed from his forefathers, like deep respect for one's elders. Rahul is an adopted child and his adoption is always a forbidden topic in the Raichand household. Rahul falls in love with Anjali (Kajol) a bubbly, effervescent girl from Delhi’s Chandni Chowk. Not acceptable to Yash Raichand, Rahul decides to leave his home. It is then that Rohan makes a promise to reunite the family and does so with the help of Kajol’s sister- Pooja (Kareena Kapoor). He seeks out to his brother Rahul and reminds him that. 

It’s all about loving your parents.