Hitler's notion of what India was for Britain was largely delusional. And dreams of imperial adventure and grandeur are one thing, but the essential causes of the war lay in the power relations between European nations (some recent creations of 19th-century nationalism) - as you point out:

A swedish kind of death:

I would argue that either way Htiler attacked the order upheld by Britain, as that order included that no single power might dominate the European continent.

The British Empire, however, did not include the European continent, and Britain could support but not impose that policy (Hitler thought Britain would accept the change he intended to bring about). Again, we're in the field of the definition of nations (subtext nationalism), their extent and borders, and their relative power positions, because some at least (Germany most) considered those questions as not yet having been satisfactorily settled.