You mean like Arabs with Arabs or Indians with Indians? This is totally fine and natural. These sub races are their own race now. But as far as I know go for the one that looks more like you. The reason I say this is because you have light skin Arabs and Indians and I think it was written that it's best for the light to go with light and dark with dark, in accordance to each race. I think this goes for dark Asians and light Asians as well. If I'm wrong hopefully someone can correct me on this.