Vastu shastra (vāstu śāstra, also vastu veda and vastuvidya, “science of construction”, “architecture”) is an ancient doctrine which consists of precepts born out of a traditional view on how the laws of nature affect human dwellings. The designs are based on directional alignments. It is primarily applied in Hindu architecture, especially for Hindu temples, although it covers other domains, including vehicles, vessels, furniture, sculpture, etc. The foundation of Vastu is traditionally ascribed to the mythical sage Mamuni Mayan (Mahaa-muni Maya, a daanava/demon reformed by tapasyaa/austerities) in South and Vishvakarman in North India.
While Vastu had long been essentially restricted to temple architecture, there has been a revival of it in India, in recent decades, notably under the influence of late V. Ganapati Sthapati, who has been campaigning for a restoration of the tradition in modern Indian society since the 1960s.
While the fields are related, Shilpa Shastra explicitly deal with sculpture – forms, statues, icons, stone murals etc. The doctrine of Vastu Shastra is concerned primarily with architecture – building houses, forts, temples, apartments and other buildings.