
That is the decorative Hindu version of the Swastika.

I don't think there is a need to elaborate on what that is.
The Swastika existed long before the national socialist party did; as says a Wikipedia article on the symbol, "Earliest archaeological evidence of swastika-shaped ornaments dates back to the Indus Valley Civilization of Ancient India as well as Classical Antiquity." I personally do not immediately think of the national socialist party when I see a non-national socialist Swastika.