📰 Revised Base Year for GDP and Other Economic Indicators
📌 Context: Saurabh Garg, Secretary, Ministry of Statistics and Programme Implementation (MoSPI), announced that the base year for India's GDP calculation is being revised from 2011-12 to 2022-23. The revised data series will be released on February 27, 2026.
📊 What is a Base Year?
- The base year is the reference year for comparing the current prices and volumes of goods and services to assess real economic growth.
- It helps in calculating real GDP (adjusted for inflation) and nominal GDP (current prices).
🧮 Upcoming Base Year Changes:
| Indicator | Current Base Year | New Base Year |
|---|---|---|
| GDP (Gross Domestic Product) | 2011–12 | 2022–23 |
| IIP (Index of Industrial Production) | 2011–12 | 2022–23 |
| CPI (Consumer Price Index) | 2012 | 2023–24 |
📌 Historical Revisions of GDP Base Year:
India has revised the GDP base year 7 times previously. The 2022–23 revision will be the 8th.
| Previous Base Year | Revised To | Year of Revision |
|---|---|---|
| 1948–49 | 1960–61 | August 1967 |
| 1960–61 | 1970–71 | January 1978 |
| 1970–71 | 1980–81 | February 1988 |
| 1980–81 | 1993–94 | February 1999 |
| 1993–94 | 1999–2000 | January 2006 |
| 1999–2000 | 2004–05 | January 2010 |
| 2004–05 | 2011–12 | January 2015 |
🔍 Why Revise the Base Year?
- 🆕 Reflect structural changes in the economy (e.g., rise of services sector, decline in agriculture share).
- 🎯 Improve data quality and methodology based on better availability (e.g., use of NSSO surveys).
- 🔍 Accurate measurement of real growth by adjusting inflation and price changes.
- 📈 Inclusion of emerging sectors, exclusion of outdated sectors.
⚠️ Why was 2017–18 not used as the base year?
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Originally planned for revision.
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But discarded due to data quality concerns and economic disruptions:
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📉 PLFS 2017–18 showed highest unemployment rate in 45 years.
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📉 CES 2017–18 showed a decline in consumption, indicating rising poverty.
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📉 Major economic disruptions:
- Demonetisation (2016)
- Introduction of GST (2017)
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📉 GDP growth fell from 8% (2016–17) to <4% (2019–20).