"As the middle class grows, as its aspirations grow, everyone wants affordable luxury. There is a huge interest in aerospace and defence to manufacture in India. Will it happen? Yes. How long will it take? It can be anybody's guess. As a conscious decision, we have decided that we will not operate in the US. We don't want to deal with that uncertainty," Raymond Group Chairman Gautam Hari Singhania said at NDTV World Summit.