CPI measure changes over time in general level of prices of goods and services that households acquire for the purpose of consumption. For construction of CPI numbers, two requisite components are weighing diagrams (consumption patterns) and price data collected at regular intervals. The data refers to State wise Consumer Price Index with base year 2010 =100.
The 5 states with highest decrease in CPI are Meghalaya, Arunachal Pradesh, West Bengal, Chandigarh and Jharkhand during the period.
CPI for Meghalaya has decreased from 152.1 in April 2014 to 124.2 in December 2014 showing a decrease of 27.9 points. CPI for Arunachal Pradesh has decreased from 148.6 in April 2014 to 124 in December 2014 showing a decrease of 24.6 points. CPI for West Bengal has decreased from 142.8 in April 2014 to 119.5 in December 2014 showing a decrease of 23.3 points. CPI for Chandigarh has decreased from 138.2 in April 2014 to 116.3 in December 2014 showing an decrease of 21.9 points. CPI for Jharkhand has decreased from 140 in April 2014 to 118.9 in December 2014 showing a decrease of 21.1 points.
The 5 states with lowest decrease in CPI are Andaman and Nicobar (12.6 points); Nagaland (12.2 points); Daman and Diu (12.1 points); Manipur (10.7 points) and Dadra & Nagar Haveli (9.1 points).