Vaastu science can be found in Inscriptions & Archaeological source material in History. Prehistory and Religious books of Hindus are main source of Indian Vaastu science. Long time research & development has proved its accuracy. Systems and their results show that Vaastu is a science, irrespective of castes, religions, emotions and all superstition; this science is related to nature. Nature’s laws are too cruel. They don’t ignore our mistake. Nature affects only natural things.