Vastu shastra means a science of architecture and construction of living place. Vastu shastra is providing a detailed manual on site selection, site purification, design, layout, measurements, ground preparation, space arrangement and other aspects of architecture. The designs are based on integrating architecture with natural forces and ancient Indian beliefs utilizing perfect geometric patterns i.e. yantra and directional alignments.
Vastu Vidya is an Indic system of architecture. The Sanskrit term describes a body of knowledge, sustained, developed and modified by successive generations of sthapatis, shilpis and architects through the course of many centuries. Ancient Vastu Shastra guides on the design of the religious places, design and layout of houses, towns, cities, gardens, roads, irrigations, works, shops and other public locations. While most Vastu Shastras describe rules of construction and architecture, a few Vastu experts include astrology gems and metal during the constructions. Famous historians such as Alexander Cunningham and James Fergusson have suggested that the idea of vastu Shastra developed between 6000 BCE and 3000 BCE. The famous archaeological sites Harappa and Mohenjo-Daro are based on the principles of Vastu Shashtra. Excavation of a number of ancient sites proves the existence of Vastu shastra.