Plot

Raj is a struggling singer with big dreams who is still waiting for his big break. One night he witnesses an accident where a car spins out of control and lands on the tracks of an on-coming train. Raj runs over to the wreckage and rescues the occupant just in time. He takes her to the hospital and the girl's family are informed. The girl, Pooja Oberoi, survives but is in a vigil coma, a condition whereby she can hear and see everything but cannot speak nor move any part of her body. The Oberoi family is grateful to Raj and are led to believe that he is Pooja's groom, Romi. Raj is reluctant to accept this but then he changes his mind and accepts being the groom, as he has an agenda of his own and takes advantage of this accident to further his goals. But then he meets Pooja's best friend Jahnvi and falls in love with her. The situation is complicated even more when Pooja wakes up from the coma and begins to show feelings for Raj.—Soumitra

Raj/Raju (Salman Khan) is an orphan, brought up by Mrs Godhinho, who teaches Raj music in Goa. When Raj grows up, he comes to Mumbai as a professional singer trying to make his way in the big city. Raj believes that Mumbai is the city where he will meet the girl of his dreams and make good in his singing career. Raj stays with his friend Abdul (Neeraj Vora). Abdul says that Mumbai is a city of pretenses and asks Raj to get a bike. Raj buys a bike on EMI by giving postdated checks, even though he has no money in the bank. Abdul introduces Raj to a music producer Mishra (Asrani). Raj sings a song for Mishra, and he is super impressed. Mishra wants Raj to record his songs in a cassette, which will cost Rs 2 Lakhs.

Abdul goes to his miser uncle (Shakti Kapoor), who runs a roadside cafe. The uncle runs a juice machine in his cafe and eats the remainder of the fruit after the juice is taken out, so that there is no wastage. Raj and Abdul sell a bus stop, by making it like a shop, to the uncle and defraud him of Rs 2 Lakhs, to fund Raj's cassette.

Raj uses the money and records the cassette, but when they go back to the music company, they find that Mishra had died. Raj and Abdul meet Mishra's boss and the owner of the gramophone company Mahesh Hirwani (Satish Shah) at Mishra's funeral. But Mahesh throws them out.

Soon, Abdul's uncle figures out that he has been defrauded (when the municipality arrives with a bulldozer and removes the bus station where uncle had set up a juice shop) and goes mad. Raj is distraught that his dream is now in tatters.

Raj rescues a young woman whose car has an accident and has fallen on the train tracks. Raj risks his own life to pull the woman out of the car, before an oncoming train crushes it. The woman was in wedding attire of a bride. He rushes to the hospital & stays with her. It is assumed by the hospital staff that Raj is the woman's husband. The attending doctor recognizes the woman as Pooja, the daughter of his friend. Pooja Oberoi (Rani Mukerji), the daughter of a wealthy family, survives but falls into a coma. She can listen and understand everything, but she can't speak or move.

Her family Bharat Oberoi (Rajeev Verma) Pooja's father, Biji (Kamini Kaushal) and Bharat's trusted employee Govardhan (Paresh Rawal), and son of Pooja's Bua Monty (Vinay Pathak) rushes to the hospital. Finding Raj there, assumes that he is Pooja's husband Romi, with whom she had eloped with to marry and whom they had never met. The family was against Pooja marrying Romi and this was the reason that Pooja was driving away in stress (to run away with Romi) and met with an accident. The family is told that pretend Romi risked his life on the train tracks to save Pooja, and they indebted to him.

When Raj is alone with Pooja, he tells her that he is leaving as he is not Romi. Govardhan hears this and now knows the truth about Raju not being Romi but begs Raju to stay for the sake of the family. Since Pooja's father has a higher chance of a heart attack, Raj agrees to lie and says he is Romi. Mahesh also finds that Romi (Real Raju) is the son-in-law of Oberoi and his whole attitude changes towards the pretend Romi.

From the beginning pretend Romi talks to Pooja and tells her the truth. He returns her jewels that he found in her bag in the car. Pretend Romi confides in Govardhan that he will reveal the truth once his cassette is recorded by Mahesh. Govardhan agrees as he knows that Raju/pretend Romi is a good man by heart.

As the family gets to know the pretend Romi, Pooja's best friend & Govardhan's daughter, Jahnvi (Preity Zinta) starts spending a lot of time with him. Raju rejects all material comforts offered by the family and wants to be his own man. Jahnvi is impressed with pretend Romi with each passing day. They pray at a temple together for Pooja's speedy recovery. Jahnvi finds pretend Romi talking to Pooja and figures out the truth. Her respect for Raj grows as she realizes that Raj is only helping Pooja out of the goodness of his heart.

Raj and Jahnvi both fall in love with each other, who is regarded as a second daughter by Pooja's family. Pooja's Dance master (Razak Khan) had seen Raju at Mishra's recording studio and finds him at the Oberoi house, as Romi. But he has short term memory loss and doesn't remember Raju.

Raj records his album with Mahesh. Then Pooja revives from her coma and complicates matters by falling for Raj. Raj and Jahnvi continue their affair, while hiding it from the family. Pooja has also identified Raj as Romi, to keep up the charade and keep the family feelings intact. Govardhan knows about Raj and Jahnvi and agrees to keep it a secret.

When all is going well, Abdul's uncle arrives and accuses Raju of cheating the entire family. But Pooja stands up for Raju and says that as Romi, he could have done incalculable damage to her and the family but did nothing of the sort. He is a good guy. The family accepts Raju. In a conversation, Pooja and Jahnvi both reveal that they both love Raj using signs (Hand up) but Jahnvi realizes that Pooja loves Raj resulting in her putting her hand down. Raj and Jahnvi put their relationship to an end.

On the day of their engagement, Jahnvi unknowingly takes Pooja's cell phone (Her and Pooja's cellphone look the same). Knowing that Raj will never marry Pooja if she's there, she decides to leave. When Jahnvi cell's phone rings, Pooja picks it up and it ends up being Abdul who pleads Jahnvi to break this wedding and come back to Raj. Pooja then reveals to everyone about Raj and Jahnvi and Raj and Jahnvi are once reunited. Pooja chooses Rahul (Shah Rukh Khan). Rahul comes to marry Pooja.