Ghajini is a Tamil film released on September 29, 2005. The film stars Surya Sivakumar, Asin Thottumkal, Nayantara, Pradeep Rawat and Riyaz Khan. The film is directed by A.R. Murugadoss. This film is based on Christopher Nolan's Academy Award winning art film Memento. It is also being remade into Hindi starring Aamir Khan and Asin Thottumkal playing the same role.

Story
This is a remake of the original version of Memento by Christopher Nolan.

The story is about Sanjay Ramaswamy (Surya), a rich businessman and his friend Kalpana (Asin). Kalpana, an advertisement model goes around telling her producer that she is the lover of Sanjay when she hasn't even met him and also gives an interview about this to a popular magazine. Sanjay comes to know about this and wants to settle scores with her but on the way he meets a girl(who is Kalpana) who helps handicapped children. He develops a love at first sight and eventually, he meets Kalpana. She is the same helpful girl he had seen and doesn't tell her that he is Sanjay. Kalpana would fall in love with him. While on a train to Mumbai, Kalpana saved a group of children from a group of dacoits. After a few days, the same dacoits come to Kalpana's house in order to murder her. Sanjay would arrive at the scene and fight some of the dacoits, but during the fight, she is murdered. The irony is that Kalpana never finds out that he is Sanjay. The dacoits hit Sanjay on the head severely with a metal rod. Sanjay survives the incident, but suffers a strange disease which is characterized by short term memory loss. At any time, he would not be able to remember anything that happened more than 15 minutes ago. He determines to revenge the dacoits who killed his love. The rest of the story is about how Sanjay goes about finding the dacoits in spite of his memory loss.