India has a more defined target than did the US after 9-11. Look how eager the US was to retaliate after we were attacked.
Does the world expect India to just suck it up and move on?
True but Bush also gave the Taliban the chance to avoid war by extraditing bin Laden. The Taliban chose not to.
In the present case, the Paki govt. sounds as if other elements of the Mumbai group are still in Pakistan, they will round them up.