Sunita (Jiah Khan) is a medical student, working on a project about the human brain with her class. When she is denied access by her professor to the curious case of Sanjay Singhania (Aamir Khan), a man reported to have anterograde amnesia, because it is under criminal investigation, Sunita decides to investigate the matter herself.
It is revealed that Sanjay loses his memory every 15 minutes. He uses a system of photographs, notes, and tattoos to recover his memory after each cycle to remind himself of his mission: to avenge the death of his beloved Kalpana (Asin). He systematically kills the people who were tied to the murder. His main target is Ghajini (Pradeep Rawat), a notable social personality in the city, and the man directly responsible for Kalpana's death and Sanjay's condition.
Police inspector Arjun Yadav (Riyaz Khan) tracks Sanjay down and hits him unconscious. Yadav finds two diaries in which Sanjay has chronicled the events of 2005 and 2006.
The film flashes back to 2005 as Yadav reads the diary. Sanjay Singhania is the chairman of the Air Voice mobile telephone company. In the course of business, he sends his men to meet Kalpana, a struggling model of Mumbai, about putting up a billboard above her apartment. The owner of Kalpana's advertising firm misinterprets this as a romantic advance and, in view of a possible lucrative Air Voice ad campaign, encourages Kalpana to accept the overture.
Kalpana thinks of it as an innocent prank that may fetch her better modelling work and decides to charade as Sanjay's girlfriend. Sanjay goes to confront Kalpana about this but falls in love with her at first sight. He hides his identity and introduces himself as Sachin, and the two begin spending time together. The diary ends with Sanjay proposing to Kalpana and promising himself that he will reveal his actual identity if she accepts.
When Yadav is about to read the 2006 diary, Sanjay awakes and attacks him, tying him up. Ghajini realizes that someone is trying to kill him but cannot figure out who. Sunita visits Sanjay's flat and discovers Sanjay's plan to kill Ghajini. She takes both his diaries before finding Yadav, beaten and bound, and freeing him.
Just then, Sanjay arrives, but he remembers neither of them and chases them out. Yadav is hit by a bus as he flees in terror, and Sunita, believing Ghajini is the good guy in danger, informs him about Sanjay. Ghajini arrives at Sanjay's flat and destroys all of Sanjay's photographs and notes, as well as the tattoos on Sanjay's body, so that Sanjay is left with nothing to help him recover his memory.
As Sunita reads the diaries, the film flashes back to 2006, where it is revealed that Kalpana had accepted Sanjay's proposal. When this diary ends abruptly, Sunita digs further and discovers that Kalpana was travelling to Goa for a modelling assignment when she came upon 25 innocent young girls being trafficked. She had saved the girls, who named Ghajini as the ringleader of the racket. Outraged, Ghajini broke into Kalpana's apartment with his goons to kill her. When Sanjay arrived, he found Kalpana stabbed. Ghajini then hit Sanjay over the head with an iron rod.
Sanjay's last sight was Ghajini brutally murdering Kalpana with the iron rod. Kalpana's last word to Sanjay was "Ghajini."
Sunita, now aware of the shocking truth, finds Sanjay in the hospital and tells him the truth. He flies into a heartbroken rage and tracks down Ghajini with Sunita's help. He fights off all of Ghajini's henchmen with a superior and anger-fueled strength.
Ghajini, realizing Sanjay is too strong for him, flees. Sanjay's memory loss strikes again, and he forgets who Ghajini is. Ghajini takes this opportunity to stab Sanjay and taunt him with the grisly tale of how he murdered Kalpana. As he is about to make Sanjay relive the experience by killing Sunita the same exact way, Sanjay recovers the memory of Kalpana's death, and overpowers Ghajini in a flash of strength. He finally kills Ghajini, in the same way Ghajini had killed Kalpana.
The film ends with a still-amnesiac Sanjay volunteering at an orphanage. Sunita gives him a gift that reminds him of his bond with Kalpana, and Sanjay imagines Kalpana by his side, finally at peace with himself.
Character Error When inspector Arjun Dev runs for Sanjay Singhania for the first time when Sanjay is in the bus. The inspector successfully enters the bus even after running for it, as the driver of the bus could stop it. When he gets in, Sanjay Singhania is missing. If he could have got off the bus, the inspector could have seen him, but he didn't - so where did he go?
Continuity Gia Khan has never seen Asin, but when they were looking for the archives of newspaper to complete the story of Amir Khan she spotted the news paper correctly with Asin's photograph. How could she identify someone's picture when she had never seen her?
Continuity Sanjay Singhania's Diary for 2005 changes colors Black to Tan and black again when it changes hands from Inspector (Riyaz Khan) to Sunita (Jiah Khan) and back to Sanjay Singhania (Aamir Khan).
Continuity There is a scene where Sanjay Singhania (aamir khan) is giving interviews to media people, but in the end it is said that no one has ever seen Sanjay Singhania.
Continuity Aamir apparently doesn't remember for more than 15 min, but there are scenes where he seems to be alright for hours.
Continuity Sanjay has a scar running across the top of his head, despite only being struck with the metal rod on the back and front of his head.
Continuity At the near end of the movie, when Sanjay is following Ghajini on Bike, the SUV in which Ghajini is going is a 2004 model Land Cruiser. In the next scene a 2008 model Land Cruiser is seen. Again in the next scene it becomes a 2004 Model
Continuity In the end fight scene when Sanjay hits a man, he falls normally but in the next scene his head is rotated.
Continuity The stage where Jiah Khan dances on the song "Latoo", increases in size and shape when the song starts. During the speeches the stage is extremely small and congested.
Errors in Geography When Aamir Khan leaves for London, he is shown entering the Bombay international airport. However, the internal shots of the airport are shot at the domestic airport.
Factual Mistake Sanjay Singhania (Aamir Khan) suffers from Anterograde Amnesia, whereby a person remembers everything before the incident which caused the problem. Therefore, he should have remembered his personal assistant as well as the flat which he bought for Kalpana (and later used as his base). However, he relies on photographs and notes to remember these things as well.
Factual Mistake Sunita (Jia Khan) goes to library and gets a newspaper from archives department and takes it to the school, but in reality libraries never gives old newspapers to take home. And in the newspaper you can see girl's picture clearly printed on the front page but in reality you never find any such photographs without their face covered.
Factual Mistake Aamir Khan is said to have short term memory loss, but he is shown to remember nothing - which is not actually short term memory loss.
Factual Mistake A goon talking on the iPhone is holding the phone upside down. The black strip of the phone can be seen held against his ears.
Miscellaneous It is shown that Sanjay reads the content of his diary in the hospital, with additional help from Sunitha. But it is practically impossible to know what happened in the past two years within 15 minutes. And adding to that, Sanjay shouts madly after knowing the "flashbacks" of his life, though he shouldn't be remembering anything.
Miscellaneous When a lady falls due to the auto rickshaw in which Sanjay is riding, she actually falls due to a unintentional hand push of Sanjay, which he does reflexively when touched by the lady's body.
Miscellaneous Aamir has the wound mark right across his head. But at the end of the movie, he has full grown hair with no visible mark., but hair cannot grow on wounds.
Ghajini was made in Tamil by the same director A.R. Murugadoss. It starred Suriya, Asin and Nayanthara whereas in the Hindi remake, Aamir Khan plays the role of Surya and Asin remains the common factor, Late Jiah Khan plays the role of Nayantara.
The film was widely publicized for display of Aamir Khan (Sanjay)'s 8-pack abs. All the promotional video of the film had scenes of Aamir's bare chest. Aamir Khan even released the videos, in which he was shown exercising in gym, and giving body-building tips.
This is a remake of the Tamil film Ghajini, which was inspired by the Christopher Nolan movie Memento (2000).
The first (and till now only) film in India to be given a UA certificate on account of violence and not sexual content.
The mobile phone number imprinted on Aamir Khan's body shown in the movie turned out to be a real phone number used by a woman in Bangalore. After the movie was released she got lots of calls and texts. Even though the distributors of the film wanted to help her, the posters of the movie showing Aamir's toned body with tattooed number were marketed widely before the movie released. (See also Bruce Almighty.)
South Indian actress Asin's debut movie in Hindi.
After watching Ghajini actor Aamir Khan was impressed by the story and the performance of Asin, he initially decided to remake it on Hindi and requested Asin personally to reprise her role in the Hindi version.
It was Aamir Khan's strong decision Asin remained in the movie, the producers were not interested in casting South Indian actresses opposite Aamir. Their choice to play Kalpana was Priyanka Chopra. Later producers agreed to go with Aamir's choice.
Even though it's the remake of Tamil Film Ghajini, the climax, some characters and the ending were rewritten in the Hindi adaptation.
Asin, Riyaz Khan and Pradeep Singh Rawat are the only cast members reprising their roles from the original movie. Also some of the extras artists and stunt players remained the same.
Jiah Khan's and Riyaz Khan's second Hindi film.
Casting for the part of Sunita got into trouble because none of the actress were ready to play supporting role. Konkona Sen Sharma was attached to play the part but declined at the last moment and later the role was picked up by Jiah Khan.
Director A.R. Murugadoss's debut movie in Hindi.
According to director A.R. Murugadoss the climax of the movie was rewritten by Aamir Khan. The entire location, incidents and dialogue for the climax were re-polished by Aamir and considered that version far better than his original Tamil version.
As a child Jiah Khan's favorite actor remained Aamir Khan and favorite movie remained Rangeela. Jiah Khan's first film was Nishabd, directed by Ram Gopal Varma who directed "Rangeela" ,and the second film turned out to be Ghajini with Aamir Khan who was the hero of "Rangeela".
According to Aamir, the things excited about Ghajini was the action, the story, the screenplay and the love story in the film. But he was a bit hesitant whether to do the film or not. It was original actor Suriya convinced him to do the movie telling that he is the only one who can do justice to the character. And after meeting with director A.R. Murugadoss, Aamir finally set to start the Hindi version of Ghajini.
In the Hindi version Aamir Khan plays the role of protagonist, played by Suriya in the original Tamil movie. In another of Aamir Khan's movies Like Stars on Earth, Surya dubbed Aamir's part in the Tamil version of the movie.
Director A.R. Murugadoss was offered to remake original Ghajini in Telugu but declined the idea. Later when he was approached by Aamir Khan to produce it on Hindi, he accepted the offer.
Director A.R. Murugadoss was approached by Telugu producers to remake Ghajini in Telugu but declined saying that he can only create magic once. So the producers dubbed the movie in Telugu language. This created some copyrights issues when Aamir Khan started to shoot the movie. The Telugu producers who did the dubbed version filed a case on court concerning copyright issues. Finally Aamir Khan settled the case and gave credits to them as producers in the Hindi remake.
Director A.R. Murugadoss didn't want to do an exact remake of the Tamil version, his original approach was to rewrite the entire script for a "Bollywood Version" of the story, but Aamir Khan wanted him to stick with the original one. Even Aamir Khan played the character as left handed only because in the Tamil version actor Suriya played the character in the that way. Even though Aamir did uncredited rewrites for the climax, characters and for the ending.
During the production stages the marketing department released the tonsured wounded head shot of Aamir Khan's new appearance for the movie. That made many fans try the 'new hairstyle' and named it as "the Ghajini cut". Some of the institutions even banned that haircut, feeling that it looks bad on the students and brings down the reputation of the college.
The shooting for the movie was stopped for a few weeks due to an accident caused to Aamir Khan while doing a fight sequence.
According to Aamir Khan he has not watched Tamil cinema much. It was because of actor who played the title character Pradeep Singh Rawat, who was also the costar of Aamir Khan Productions' Lagaan: Once Upon a Time in India, he watched the Tamil movie and felt that film got lot of potential.
According to trainer Satyajit Chaurasia, Aamir Khan went on a four-hour workout regime for 13 months and followed a proportionate balanced diet containing 40 percent carbohydrates, 40 percent protein and 20 percent fat. According to him Aamir's body for the movie was mostly made on eggs as he used to have 16 egg whites through the day.
Actor Mohit Ahlawat was attached to play the police inspector in GHAJINI but was replaced by the original cast member Riyaz Khan at the last moment.
According to Aamir Khan the only Tamil movie that he has seen apart from the original GHAJINI is Kamal Hassan starer Nayakan.
The styling for Aamir Khan in the movie was done by Van Heusen clothing. Before the release of the movie they decided to launch their own line of clothing based on the movie and named it 'The Ghajini Collection'.
The song 'Gusarish' was filmed in the location of Skeleton Coast, Namibia. It was later filmed for Tamil movie Ayan which stared Ghajini's original hero Suriya.
Aditya Pancholi was originally to play the role of Ghajini. The producers felt he could do justice to the role, but as he did not like the part he rejected it.
Sign up and get access to some cool features. Create watchlists, check in at movies, rate them or even write whole reviews! You can also share literally everything on Moviebuff with your friends, enemies, frenemies, family, babysitter or pets. Is that enough incentive for you?