Once the latest household consumption expenditure survey is used to calculate new series, the weighting composition of different items will change.
Also, CPI-AL is used to determine wages under the government’s flagship rural jobs programme — the Mahatma Gandhi National Rural Employment Guarantee Act (MGNREGA). In 2009, the MGNREGA wage was first indexed against the CPI-AL.
The Mahendra Dev committee, set up in 2013 to look at the MGNREGA wages afresh, recommended in its 2015 report, that the wages should be indexed against CPI-R instead, since CPI-AL and CPI-RL (Consumer Price Index-Rural Labour) were outdated. In CPI-Rural, food items account for only 59 per cent and it also provides for higher expenditure on education, medical care, and transport and communication.