Ghajini may be remake of a 90's movie called 'Memento'

Ghajini may be remake of a 90's movie called 'Memento'. Even though I haven't seen the apparently Tamil 'original' which came in 2006, I am sure that it is a major lifting of storyline from the Western film. In Memento which has come to be one of my fav movies, the Lead is played by Guy Pearce and he has this condition in his brain which prevents him from making new Long term memories. In technical language, his RAM works but his Hard Disk is corrupted. Hence he writes everything that he wants to remember on his body, by notes or tattoos coz he knows he will forget it soon. His motive and the reason to live for is his revenge. His wife is killed and raped by someone who's name is tattooed across his chest. He has to find him and kill him, even though he doesn't remember if he has already killed him. The last memory that he has is till the point of his wives death. He ends up killing people who could be his friends and it looks like he is being used by people who know about his condition for their own means. Very complicated movie since it goes backwards, and it has to be understood to be really appreciated. If this sounds like the Ghajini movie, then it is a major inspiration, right. But looking at the tattoos Aamir is sporting, I think it will resemble Memento, a lot.