There are so many factors influence the mental state of the pregnant lady and that will in turn affect the foetus. A pleasant and happy mood is conducive to the health of the foetus whereas unhappiness, worry and other emotions like anger and anxiety of the pregnant lady will affect the foetus badly. It is said that depression and anxiety will be transferred to the foetus and will later hamper the mental health of the child. The maternal circumstances and a well planned regimen with dietetic follow ups along with developing a specific mental force i.e. Desire and temperamental disposition of mother gives desired effects on the coming child in respect of its constitution, colour,sex and to some extend its psychological trends. These all-physiological bases for prenatal child development should be studied in detail with its modern psychological views.