Waisa Bhi Hota Hai (2003)

A copywriter is thrown out by his girlfriend (who also happens to be a psychotic cop), whereupon he accidentally saves a legendary hit man's life. The hit man's boss, the most powerful don in the city, doesn't like the writer. Add to that a female gang lord who hates the don and sees the writer as way to create a rift between the don and the hit man … and, well, you've got some tension building.