Manaiyadi Sastram in Tamil/difference in Vasthu sastram 

Manaiyadi shastram reveals the vastu shastra compatibility between a specific geometry of a home or room and its occupants. Analysing this compatibility according to Tamil vastu principles of manaiyadi shastram is known as ayadi calculations, ayadi kanitham, manai porutham, ayadi porutham, ayadi compatibility and Tamil vastu porutham. Calculations used in this Tamil vastu shastra porutham is known as ayadi kanitham and ayadi calculations.