India Rebases GDP, CPI and IIP : Best Current Affairs For UPSC Prelims and UPSC Preparation

A. Simple Summary of News

• India has updated the base year for major economic indicators. GDP and IIP now use 2022–23 as the base year, while CPI uses 2024 = 100.

• Base year simply means a reference year kept as 100. Base year means a fixed starting year used for comparison. That year is treated as the normal level or 100 level. After that, we compare future data with this year to see whether the economy, prices, or production have increased or decreased.

• Example:
  Suppose 2022–23 is the base year and India’s industrial production in that year is taken as 100.

  • If production becomes 110, it means production increased by 10% compared to 2022–23.

  • If production becomes 95, it means production decreased by 5% compared to 2022–23.

• So in a single line,Base year is like a starting point. We compare future growth or inflation with this starting point to understand whether things have gone up or down.

• GDP measures the total value of goods and services produced in India. IIP measures factory/industrial production. CPI measures retail inflation faced by households.

• For manufacturing, India has adopted double deflation, meaning the price rise in final products and the price rise in raw materials/intermediate inputs will be adjusted separately. This gives a more accurate picture of real manufacturing growth.

B. Short Context

• Earlier, India was using older base years like 2011–12 for GDP/IIP and 2012 for CPI. But the economy has changed due to GST, digital payments, new industries, new consumption patterns and better data availability.

• MoSPI said base year revision helps capture structural changes, use latest data sources, improve methodology and increase accuracy.

• CPI 2024 uses the latest Household Consumption Expenditure Survey 2023–24, so the inflation basket now better reflects what people actually consume today.

C. Why It Is Important

• UPSC may test the difference between GDP, IIP and CPI.

  • GDP = overall economy

  • IIP = industrial production

  • CPI = retail inflation