Film circles around muslim terrorisom

i wanted to know the name of one film i have seen in zee studio in 2010.Story line is ..The terrorists lures and coverts a christian youth to muslim and uses him for a suicide attack in a train.While the police authorities picks a prostitute and inducts her as a spy and sends her to meet the terrorist chief .She traps the terrorist chief and defuses the train suicidal attack..please anyone provide the name of the film
I

It's a French movie 'Secret défense' (2008)