Consumer Price Index(CPI)
Consumer Price Index(CPI) measures changes over time in general level of prices of goods and services that households acquire for the purpose of consumption.
(a) Consumer Price Index for Industrial Workers: (CPI-IW)
Under Central Series, the Consumer Price Index for Industrial workers is compiled and released for 7 centres by Government of India viz., Chennai, Salem, Madurai, Coimbatore, Coonoor, Tirunelveli and Virudhunagar in Tamil Nadu by Labour Bureau, Chandigarh with base year as 2016=100. The Weekly/Monthly Price details for the compilation of this index are collected by this department staff from 14 markets and sent to Labour Bureau, Chandigarh.
Under State Series, Consumer Price Index for Industrial Workers with base year 2011=100 are compiled and released on monthly basis for four centres viz., Cuddalore, Nagercoil, Thoothukudi and Vellore. These indices are used for calculating Dearness Allowances, Daily Wages and Minimum Wages.
(b) Consumer Price Index for Rural, Urban and Combined at District level (CPI(R,U,C)
Consumer Price Index (Rural, Urban, Combined) for TamilNadu and Districts at Group and subgroup level are being released every month with effect from October 2022 with Base year 2019-2020=100. The price details are collected from 153 rural and 190 urban markets spread over the state for compilation of CPI Index. Consumer Price Index (Rural, Urban and Combined) at District level is useful to understand the price trends at District level and for decentralized planning. The report upto the month of December 2024 has been released.