You only need to look at Ryan8bit's avatar to see that Ricardo Montalban is pretty white and certainly not Indian.
Actually, you might want to see the original image that is photoshopped from:
My avatar is just sort of a nod toward the later non-bronzed TWOK Khan and the now pale white, green eyed Khan played by Cumberbatch. Sort of a retcon.
Of course, there are images of him from "Space Seed" where he's lighter looking than that link, although not quite as light as the avatar.