We have acquired the knowledge of Vastu Shastra from the four vedas namely Rigveda, Yajurveda, Sama Veda and Atharva Veda. Apart from the Vedas lot of information regarding Vastu Shastra is available in the Puranas and in other ancient granthas. The first mention of the principles of Vastu has been found in the Great Rigveda. After the vedas, four upavedas were also composed by the rishis. One of these upavedas is the Sthapatya veda, which is the upaveda of Artharva veda. With the passage of time Sthapatya veda was developed as Vastu Shastra. The puranas which provide the knowledge of vastu are Matsya purana, Skanda purana, Agni purana, Vayu purana, Garuda purana and the Bhavishya purana. Matsya purana gives detailed information regarding rock carvings and the position and decoration of ceremonial sites and venues. Narad purana gives valuable information regarding temples. Similar information regarding temples is also provided in Vayu purana's also but this purana deals with temples located at great height. Skanda purana deals with the principles of town planning and their layout. Metropolitan cities of the western civilisation would lose their lustre in front of the principles explained in this purana. Agni purana lays down the principles of residential dwelling units or residential houses. So we find that our classics are store houses of such vast knowledge.