Not really, they've never once eaten chicken tikka masala in india, it was invented in england.
haggis is an english dish that those theaving celtic brigands nicked.
Was invented in Scotland actually, but the indians have Butter Chicken which is quite similar to CTM. But when you out here for an indian, its always on the menu.
Anyway nobody can "nick" food and claim it as there own. You sound like the Welsh people harping on about inventing Parma Ham.