India’s GDP is estimated by the National Statistical Office by measuring the value added of every sector of the economy, cross checked from the production, income and expenditure sides. On 27 February 2026, the NSO released an entirely new GDP series with base year 2022-23, replacing the 2011-12 base that had stood for over a decade. If your interview happens this year, the board sits on the other side of that change.
The transcripts show national accounts questions arriving in simple clothes: the difference between GNP and NDP, examples of socio economic indicators, and discussion questions on income and inequality. Day 11 gives you the machinery, the new series, and the balanced way to speak about the debates.
The basics a board actually tests
GDP is the market value of all final goods and services produced within the country in a period. Three doors lead to the same number: production, summing value added across sectors; income, summing what production pays out; and expenditure, summing consumption, investment, government spending and net exports.
The family of aggregates around it is classic board territory, and one real candidate faced exactly the GNP against NDP question. The clean map: GNP adds the net income Indians earn abroad to GDP, while NDP subtracts depreciation from GDP. Gross against net is about depreciation; domestic against national is about whose income it is. Say those two sentences calmly and the entire aggregate family is yours.
Real against nominal completes the basics: nominal GDP uses current prices, real GDP strips out inflation using a base year’s prices, which is exactly why base years matter and exactly why this year’s news matters.
The new 2022-23 series: verified facts for the room
From the official release of 27 February 2026. The base year moved from 2011-12 to 2022-23, chosen because it was a recent normal year after the pandemic with rich data available. Under the new series, real GDP growth for 2025-26 was estimated at 7.6 percent, with 7.1 percent recorded for 2024-25.
What actually improved is the part a statistician should be able to discuss. The new series integrates supply and use tables to reduce the gap between production side and expenditure side estimates. Private consumption now follows the international COICOP 2018 classification, the same standard the new CPI adopted, bringing the two systems into alignment. The informal and household sector is now captured annually through two running surveys, the Annual Survey of Unincorporated Sector Enterprises and PLFS, instead of ageing benchmarks. Corporate data flows in from administrative sources, and multi activity enterprises are now split by activity for cleaner sectoral estimates. A back series extending the new base into the past has been announced for later, expected by December 2026.
One honest caution for your own answers: quote the growth numbers as estimates under the new series, dated to their release, and check the latest quarterly release before your interview, because these numbers revise on a calendar.
Speaking about the debates without landmines
GDP measurement attracts argument, and boards sometimes invite your view. The balanced frame that works: acknowledge the genuine difficulty, name what the system did about it, and keep your loyalty with measurement rather than any side of politics.
Applied to the base revision itself: a decade old base increasingly missed a digitising, formalising economy, which is a real measurement problem, and the 2022-23 series with annual survey inputs and supply use integration is the system’s answer to it. Applied to informal sector measurement, the oldest criticism of Indian GDP: the honest line is that household sector estimation was the weakest link, and the shift to annual ASUSE and PLFS based estimation is a direct repair. Notice that in both, the statistician’s answer ends with the machinery, not with a verdict on any government. That is the posture of the officer they are hiring.
Tomorrow, Day 12: the explain it simply genre. P value, correlation and sampling in words your grandmother would accept, because that is literally how boards test them.
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Frequently Asked Questions
What is the base year of India’s new GDP series?
2022-23. The new series was released by the NSO on 27 February 2026, replacing the 2011-12 base, with 2022-23 chosen as a recent normal post pandemic year.
What is the difference between GDP, GNP and NDP?
GNP adds net income earned abroad by residents to GDP. NDP subtracts depreciation from GDP. Domestic versus national concerns whose income it is, gross versus net concerns depreciation.
What changed in the new GDP series?
Supply and use table integration, COICOP 2018 classification for consumption, annual estimation of the household sector through ASUSE and PLFS, greater use of administrative data, and activity wise splitting of multi activity enterprises.
What is India’s GDP growth rate under the new series?
The release of 27 February 2026 estimated real GDP growth of 7.6 percent for 2025-26 and 7.1 percent for 2024-25. Check the latest quarterly release before quoting, as estimates revise.
Practice. Improve. Repeat.