It is expected that the price index numbers which are universally used as the scientific tool
of measures of price changes all over the world must reflect the real and true position of
prices in economy every time since they are the only arithmetic source of measuring the price
fluctuations and economic fluctuations thereby. But unfortunately, they do not seem to fulfill
these expectations fully especially in India. Many times it has happened that price index
numbers have failed in reflecting real economic conditions through price changes. So, this
research is attempt to study all the different price indices model and try to find out the
effective way out.