First things first. 'Sunday' is not so much of a murder mystery as it is a comedy. And the main drivers on this front are Irrfan Khan and Arshad Warsi. The music of 'Sunday' is average but the film could have done better without the song 'Loot Liya'. The cinematography is superb. There is a good stunt sequence on top of the houses of congested Chandni Chowk at the very beginning of the film. The car chase sequence in the second half is pretty ordinary...!