THe story of the movie runs around the game of chess. the concept is very well articulated as to show how an small helpless handicapped man uses and strong motivated and equally disturbed officer to take his revenge, and still while doing so when he is actually using this character he is still very affectionate about him tries to mend his broken marriage, gives him peace from his sorrows. the only weakness I feel is that some scenes at very start of movie gives you an hint as to what Character played by AMitabh Bachhan is upto.
The character of an Officer suit Farhan Akhtar and he has done a good juistice to his role as he always does. so if u compare this with his character in Zindagi na Milegi Dobara they are two different worlds.