India Releases Revised GDP Series with Updated Base Year

Release of the New GDP Series

India Releases Revised GDP Series with Updated Base Year: The Ministry of Statistics and Programme Implementation (MoSPI) has released the new series of Annual and Quarterly National Accounts Estimates, updating the methodology used to calculate Gross Domestic Product (GDP) in India. The revised framework introduces improved statistical techniques and expanded datasets to better reflect the evolving structure of the Indian economy.

A key feature of the revision is the change in the base year from 2011–12 to 2022–23. The year 2022–23 was selected as it represents the most recent stable economic period following disruptions caused by the COVID-19 pandemic between 2019 and 2021.

Static GK fact: India’s Central Statistics Office (CSO) under MoSPI is responsible for compiling national income statistics including GDP estimates.

Expanded Data Sources for Better Measurement

The new GDP series integrates several high-frequency administrative datasets. These include GST collections, the e-Vahan portal for vehicle registrations, and financial data from the Public Financial Management System (PFMS).

The integration of such digital datasets improves the measurement of economic activities across sectors. It also enables more accurate tracking of production, consumption, and government expenditure.

Additionally, surveys like the Annual Survey of Unincorporated Sector Enterprises (ASUSE) and the Periodic Labour Force Survey (PLFS) are used to improve estimates of the household and informal sectors, which form a significant portion of India’s economy.

Static GK Tip: The informal sector contributes nearly half of India’s employment, making its accurate measurement crucial for national income estimation.

Methodological Improvements in Estimation

One of the major methodological changes is the introduction of Double Deflation in sectors such as manufacturing and agriculture. Earlier, GDP calculations used Single Deflation, where only output prices were adjusted for inflation.

Double deflation adjusts both input prices and output prices, resulting in more accurate real value-added estimates. This approach is widely used in international national accounting systems.

Another important change is the alignment of Supply and Use Tables (SUT) with the national accounts framework. This integration reduces discrepancies between production-based GDP estimates and expenditure-based GDP calculations.

Improved Consumption and Government Estimates

The revised series also improves the estimation of Private Final Consumption Expenditure (PFCE). It combines multiple approaches including administrative data, production estimates, and the commodity flow method to provide a clearer picture of consumer demand.

Government sector estimates have also been adjusted to account for the implementation of the National Pension System (NPS) alongside the Old Pension Scheme (OPS). This adjustment ensures more accurate recording of public sector financial obligations.

Additionally, the new methodology captures the growing role of digital platforms, gig workers, and hired domestic services, reflecting emerging employment patterns in the modern economy.

Reasons for Revising the Base Year

The revision of the base year is a routine statistical exercise carried out to capture structural changes in the economy. Over the past decade, sectors such as digital services, renewable energy, and e-commerce have expanded significantly.

Periodic revisions also help align national accounting practices with international statistical standards recommended by the United Nations Statistical Commission.

Static GK fact: Many countries revise their GDP base year every five to ten years to maintain accuracy in economic measurement.

Economic Implications of the New Series

According to the revised estimates, India’s real GDP growth for FY 2025–26 is estimated at 7.6%. However, the nominal size of the economy has been revised downward by about 3.3% to 3.8%, placing the economy at ₹345.47 lakh crore for FY 2025–26.

The lower GDP base also affects key fiscal indicators. The fiscal deficit for FY 2025–26 increases from 4.36% to 4.51% of GDP, while the debt-to-GDP ratio for FY 2026–27 is now estimated at 57.5%, higher than the earlier budgeted level of 55.6%.

These revisions could influence the government’s target of reducing central government debt to 50% of GDP by 2031.

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India Releases Revised GDP Series with Updated Base Year: