Ghajini (pronounced [gadʐini]) is a 2005 Indian Tamil-language action thriller film directed by A. R. Murugadoss and produced by Salem Chandrasekharan.

Harris Jayaraj composed the soundtrack and background music, while R. D. Rajasekhar and Anthony were the film's cinematographer and editor, respectively.

In the film, a rich eminent businessman develops anterograde amnesia due to a head injury he sustains while attempting to save his lover from getting murdered by a gangster and human trafficker.

It was dubbed and released in Telugu by Allu Aravind in November 2005, and received positive reviews with praise for the performances of the lead pair and the plot.

It was remade into a Hindi film with the same name by Murugadoss again in 2008, with Asin and Rawat reprising their roles, with the former debuting in Bollywood, and Aamir Khan in lead.

Chitra wants to investigate the curious case of Sanjay Ramaswamy, a notable Chennai-based rich businessman who is reported to have anterograde amnesia.

It is revealed that Sanjay is ultimately out to avenge the death of his lover Kalpana and that he is systematically killing the people responsible.

Sanjay's main target is Lakshman, the head of a Kolkata-based human trafficking network and a notable socialite in Chennai.

In 2002, Sanjay Ramaswamy is the owner of the AirVoice mobile telephone company, who meets Kalpana, a struggling model, and secretly develops romantic feelings for her while introducing himself as "Manohar".

Chitra reads the 2003 diary, which states that Kalpana accepted the proposal, but on the condition that she marry only after she completes her past commitment.

As per the film's opening credits:[6] "I found the basic story — the part about the memory loss — very interesting.

In 2004, AR Murugadoss began work on a film titled Mirattal, with Ajith Kumar, NIC Arts producing and Shankar Raja as the music composer.

In response to allegations of plagiarism, Aamir Khan noted "Murgadoss had heard about a film called Memento and the concept had really fascinated him.

"[26] Malathi Rangarajan of The Hindu stated that: "Those who have watched Memento, will not miss the similarities between the English flick and Ghajini.

"[28] After the release of the Hindi remake, Christopher Nolan was reported to be upset when he found out that Murugadoss had borrowed elements from Memento without giving him due credit.

The film's title is a reference to Mahmud of Ghazni, the tenth-century Sultan of Ghaznavid Empire whose name is pronounced "Ghajini" in Tamil.

[32] Regarding the song "Suttum Vizhi", Harris said that when Murugadoss narrated him the situation in which the hero is full of admiration for the heroine's attitude and compassion and he dreams of her.

[44] Sify wrote: "Full marks to the director and Surya for coming out with one of the best edge-of-the-seat racy thriller seen in recent times.

[27] Lajjavathi of Kalki praised the performances of Suriya and Asin, Rajasekhar's cinematography, Jayaraj's music and Murugadoss's direction.

[52] However the remake failed to materialise; instead the Telugu film Manmadhudu (2002) was remade in Kannada as Aishwarya (2006) and a few scenes were borrowed from Ghajini.

[55] In a comedy scene from Kovai Brothers (2006), Ganesh (Sathyaraj) parodies Suriya's looks from Ghajini to impress Namitha.

[56][57] In Pokkiri (2007), Body Soda (Vadivelu) imagines himself dancing for the song "Suttum Vizhi" with Sruthi (Asin).

[62] In A Aa E Ee (2009), amnesia patient Rajini (Ali) runs into a nurse and the song "Hrudayam Ekkadunnadi" (Suttum Vizhi) plays in the background.

[64] In Nuvva Nena (2012), Aaku Bhai (Brahmanandam) imagines himself dancing for the song "Hrudayam Ekkadunnadi" (Suttum Vizhi) with Nandini (Shriya Saran).