India should focus on getting their own shit together. They can be content in the knowledge that Britain is a shadow of its former self, without the resources to pay back a fraction of what they took.
That is not how anything works in history. When Britain gets weak enough, The sub continent will likely invade and exact its reparations by strip mining every last square foot of Europe.
To think that some war or conflict stops for you just because you are former party to it is hilarious to imagine. What do you think your victims will do the moment they have any power over you?