Vastu Shastra (vāstu śāstra, also Vastu Veda, "science of construction", "architecture") is a traditional Hindu system of design based on directional alignments. It is primarily applied in Hindu architecture, especially for Hindu temples, although it covers other applications, including poetry, dance, sculpture, etc. The foundation of Vastu is traditionally ascribed to the mythical sage Mamuni Mayan.
Vastu had long been essentially restricted to temple architecture, there has been a revival in India in recent decades, notably under the influence of V. Ganapati Sthapati of Chennai, Tamil Nadu (b. 1927), 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 - forming statues , icons, stone murals etc. Vastu Shastra are concerned primarily with building architecture - building houses, forts, temples, apartments etc.