EconomyGovernance
News 2 of 18

MoSPI Revises GDP Using PPI for Double Deflation; Base Year Shifted to 2022-23

Target:UPSC GS-IIIMPSCSSC GATeachingBankingPrelims HighMains HighStatic GK Link
05 Sept 2026
~2 min
Source: Indian Express
Key Data:Base year 2022-23 (old base 2011-12)PPI adoption date Feb 27, 2026Q4 FY26 GDP revision from 7.8% to 8.6%300+ deflators (old 180)Input PPI trial for manufacturing only
Bodies:MoSPIICICI Securities Primary Dealership
Practice MCQs from today's news ▸
What This Article Covers

1.MoSPI shifted GDP base year from 2011-12 to 2022-23 and adopted double deflation using PPI instead of single deflation with CPI/WPI.

2.Double deflation adjusts inputs and outputs separately by their respective price indices, avoiding underestimation or overestimation of real GVA when input and output prices diverge.

3.The new series uses over 300 deflators (up from 180) for more accurate sectoral GVA estimates; input PPI is still at a trial stage for manufacturing.

The Big Picture
Prelims · HighMains · High

MoSPI has revised past GDP growth data after changing the base year to 2022-23 and adopting double deflation using the Producer Price Index (PPI). This methodological shift has led to significant revisions in quarterly and annual GDP estimates, impacting how real growth is measured, especially when input and output prices move differently. For students, understanding these changes is crucial for both static GK (GDP calculation) and current affairs (base year revisions).

Exam Lens

Quick Exam Facts From News

Old Base Year2011-12
New Base Year2022-23
New Deflator MethodDouble deflation using PPI
Previous Deflator MethodSingle deflation using CPI/WPI
Number of Deflators (New Series)300+
Number of Deflators (Old Series)~180
Date of New Series ReleaseFebruary 27, 2026
Key Revision ExampleQ4 FY26 GDP growth revised from 7.8% to 8.6%

1-Minute Revision

  • ›Old Base Year: 2011-12
  • ›New Base Year: 2022-23
  • ›Target this Data: New GDP base year is 2022-23 (replacing 2011-12); PPI introduced for double deflation on February 27, 2026.
  • ›Target this Nodal Body: Ministry of Statistics and Programme Implementation (MoSPI) is responsible for GDP revisions.
  • ›Target this Legal Point: Not a legal provision, but remember the change in methodology from single deflation (using CPI/WPI) to double deflation (using PPI).

Mastered this topic? Test your knowledge with a full MCQ quiz.

Practice exam-style questions, track your score, and strengthen your recall.

Q1Static LinkageEasy

Which ministry is responsible for releasing GDP data and making base year revisions in India?

Q2Statement-basedHard

Consider the following statements regarding the recent GDP data revisions:

1. The base year for GDP has been changed from 2011-12 to 2022-23.

2. Single deflation means that inputs and outputs are deflated separately using their own price indices.

3. The new GDP series uses the Producer Price Index (PPI) for double deflation.

Which of the statements given above is/are correct?

Q3Data-centricMedium

According to the article, how many deflators does MoSPI use in the new GDP series to compute real GVA?

Q4Application/ImpactMedium

What is the primary advantage of moving from single deflation to double deflation in GDP estimation?

All 15 MCQs ▸
You finished this topic
Explore Related Topics
Related Current Affairs
Economy Current Affairs

MoSPI Considers Diary-Based HCES for High-Income Households to Tackle 9.8% Urban Non-Response Rate

To counter rising non-response from affluent households in gated societies, MoSPI is piloting a 'diary-based' self-reporting method for the next Household Consumption Expenditure Survey (HCES) in 2027-28. This shift is critical because the HCES data directly impacts CPI basket weights, inflation targeting by RBI, and policy making, but raises concerns about data comparability due to differential recall errors between survey methods.

Economy Current Affairs

MoSPI Defends 7.8% GDP Growth Amid Criticism, Cites Base Year Change to 2022-23

MoSPI issued a six-point rebuttal defending the 7.8% GDP growth for Q1 FY26, clarifying that data revisions stem from the base year change (2011-12 to 2022-23) and updated indices (PPI, IIP). The ministry refuted claims of manipulation, emphasizing that comparing old and new series is invalid.

Economy Current Affairs

India's Q1 GDP Growth 7.8%: MoSPI Refutes Ex-Finance Secretary's Base Year Manipulation Claim

India's Q1 FY26 GDP grew 7.8% real and 10.3% nominal, but former Finance Secretary S C Garg alleged data manipulation due to base year change. The article clarifies that his calculation is methodologically flawed and explains the importance of base year revisions.

Economy Current Affairs

MoSPI Defends New GDP Series as Q1 Growth Hits 7.8%, Base Year Revised to 2022-23

MoSPI Secretary Saurabh Garg defends the new GDP series (base year 2022-23) amid criticism over downward revision of past GDP data. Q1 2026-27 growth at 7.8% surprised economists. Garg says the new series uses better data sources like GST, PLFS, ASUSE, and digital data (e-Vahan, PFMS), making it the best so far. The debate is 'unnecessary' as methods were already public months ago.

Economy Current Affairs

MoSPI: Better Informal Sector Data via ASUSE & PLFS Drives Downward Revision in Nominal GDP

India's new GDP series (base 2022-23) shows lower nominal GDP for past years, primarily because direct annual surveys (ASUSE, PLFS) now replace proxy-based estimates for the informal sector. This is a data quality improvement, not an economic slowdown — a critical distinction for exam questions on GDP measurement and methodology.

Environment Current Affairs

India's MoSPI Launches Experimental Monetary Asset Accounts of Marine Fish Resources for Blue Economy

India's MoSPI has initiated a groundbreaking experiment to assign monetary value to marine fish stocks under the UN SEEA framework. This natural-capital accounting aims to integrate blue economy into national accounts, providing data for sustainable fisheries management and climate-risk assessment. For UPSC aspirants, this links to Environment, Economy, and Government policies on blue economy.

Economy Current Affairs

New GDP Series 2022-23: 5 Key Changes Including MGT-7 Classification, Gold Savings Doubling, and Rooftop Solar

India's new GDP series (base year 2022-23) introduces five lesser-known but impactful changes. Key reforms include splitting enterprise GVA by activity using MGT-7 forms, valuing government housing, lowering asset useful lives, shifting household savings data source to SEBI (doubling gold savings estimates), and including rooftop solar electricity. These changes improve GDP accuracy but require careful understanding for exam questions on methodology.

Economy Current Affairs

India Revises 2015 Model BIT Amid Calls for Public Consultation and Parliamentary Scrutiny

India is revising its 2015 Model Bilateral Investment Treaty (BIT) after it yielded only a handful of treaties, with the revised text likely to go to the Union Cabinet. The op-ed by Prabhash Ranjan argues that the process must include public consultation and parliamentary scrutiny to overcome the 'democratic deficit' in treaty-making. For aspirants, this connects investment protection, state regulatory autonomy, and participatory democracy.