Comparison of weighting diagrams of the existing and revised series of CPI
Base Year Revision of Consumer Price Index (CPI)
The Central Statistics Office (CSO) releases Consumer Price Indices (CPI) for Rural, Urban and Combined, at State/UTs and all India level, w.e.f. January 2011. The Base Year of this series of CPI is 2010=100 and weighting diagrams are based on the results of Consumer Expenditure Survey (CES) 2004-05.
2. Now the CSO is in the process of revising the Base Year from 2010=100 to 2012=100. The weighting diagrams have been prepared on the basis of the results of CES (2011-12). With this revision, the gap between Price Reference Year (Base Year) and the Weight Reference Year has been minimized. Apart from this, a number of methodological improvements have been introduced in the revised series, which are as follows:
