FIRST PRESS RELEASE OF INDEX OF CORE INDUSTRIES OF NEW SERIES WITH BASE YEAR 2022-23
Good — this confirms the broader base-year revision context (GDP, WPI, IIP all shifted to 2022-23 in 2026). Now writing the study note.
Index of Core Industries (ICI) — New Series with Base Year 2022-23
1. At a Glance
- ICI measures combined and individual monthly output performance of core/infrastructure industries that feed into the Index of Industrial Production (IIP); it is a key high-frequency lead indicator of industrial and infra activity [S1].
- On 20 July 2026, the Office of Economic Adviser (OEA), DPIIT, Ministry of Commerce & Industry released the first press release of the revised ICI series (Base Year 2022-23), replacing the 2011-12 base series [S1].
- The revision is part of a synchronized base-year overhaul across India's key economic indices in 2026 — GDP, WPI/PPI, IIP, and now ICI — all shifted from base 2011-12 to 2022-23 [S2][S3].
- For UPSC: tests both static classification knowledge (core industries, weights, nodal ministry) and current-affairs base-year revision themes common in Prelims/Mains economy sections.
2. Why in the News
- First press release of the new ICI series issued 20 July 2026, covering data for June 2026 (Provisional Estimates) [S1].
- Comes amid a broader 2026 statistical modernization drive: IIP new series released 1 June 2026 [S2]; WPI/PPI new series released [S3]; GDP new series with base 2022-23 also released in 2026 [S4] — signalling a coordinated shift of India's national accounts/index architecture to a post-COVID, more representative base.
3. Background & Evolution
- Old series: ICI Base Year 2011-12=100, comprising eight core industries: Coal, Crude Oil, Natural Gas, Refinery Products, Fertilizers, Steel, Cement, Electricity — together carrying 40.27% weight in IIP [S5].
- Revision trigger: Base years are periodically revised to reflect current economic structure; 2022-23 chosen as new base consistent with the parallel revision of GDP, IIP, and WPI base years [S2][S4].
- New series released: 20 July 2026, by OEA, DPIIT [S1].
- Back series: Reconstructed from April 2023 onward, hosted on OEA's web portal (eaindustry.nic.in) [S1].
4. Core Static Facts
| Feature | Old Series (2011-12) | New Series (2022-23) |
|---|---|---|
| Base Year | 2011-12=100 | 2022-23=100 [S1] |
| No. of Core Industries | 8 [S5] | 9 (Iron Ore added) [S1] |
| Nodal Body | OEA, DPIIT, Ministry of Commerce & Industry | Same [S1] |
| Steel measurement | Net production | Gross production (aligned with IIP) [S1] |
| Coal measurement | Raw coal + coal middling + washed coal | Raw coal only (double-counting removed) [S1] |
| Linking Factor | — | 1.47 (for old-new series comparability) [S1] |
- New sector weights (2022-23 base): Electricity 30.932%, Refinery Products 22.572%, Steel 17.584%, Coal 5.596%, Iron Ore 4.905%, Cement 4.41%, Natural Gas 3.841%, Fertilizers 2.731% [S1].
- Old sector weights (2011-12 base): Coal 10.33%, Crude Oil 8.98%, Natural Gas 6.88%, Refinery Products 28.04%, Fertilizers 2.63%, Steel 17.92%, Cement 5.37%, Electricity 19.85% [S5].
- June 2026 ICI value: 119.6 (provisional), YoY growth 5.0% [S1].
5. Multi-Dimensional Analysis
Economic - ICI acts as a proxy lead indicator for IIP (mining, manufacturing, electricity) since core industries hold ~40% IIP weight; early ICI trends foreshadow subsequent IIP releases [S5][S1]. - Q1 FY27 (Apr-Jun 2026) core sector growth of 3.6% vs 1.0% in the same quarter previous year signals infra/industrial momentum pickup [S1].
Administrative/Governance - Reflects inter-ministerial statistical coordination — DPIIT (Commerce Ministry) runs ICI/IIP-adjacent indices while MoSPI runs IIP/GDP; both simultaneously revised base years to 2022-23 in 2026 to keep India's index ecosystem internally consistent [S1][S2][S4]. - Methodological cleanup (gross vs net steel, single coal category) improves inter-index comparability and reduces double-counting — a governance/data-quality improvement rather than mere rebasing [S1].
Scientific/Statistical - Introduction of Iron Ore as a 9th core industry reflects growing weight of upstream mining inputs in industrial output, especially steel-linked demand [S1]. - Use of a linking factor (1.47) is the standard NSO/MoSPI-style technique to splice old and new series for continuity of long-run analysis [S1].
Historical/Comparative - ICI has undergone earlier base revisions too (from base 2004-05 to 2011-12); 2022-23 continues this decadal-ish rebasing cycle, now compressed given the pandemic-driven need for updated weights [S1][S5].
6. Recent Developments (last 12-18 months)
- 25 May 2026: Technical Advisory Committee report on IIP base-year revision (2011-12 → 2022-23) released [S2].
- 1 June 2026: MoSPI released new IIP series, base 2022-23, using WPI as deflator [S2].
- 2026: New WPI/PPI series with base year 2022-23 released [S3].
- 2026: New GDP series with base year 2022-23 released [S4].
- 20 July 2026: First press release of new ICI series (base 2022-23) for June 2026 data, by OEA-DPIIT [S1].
7. Prelims Hooks
- ICI new series base year: 2022-23; old base year: 2011-12 [S1].
- Nodal agency for ICI: Office of Economic Adviser (OEA), DPIIT, Ministry of Commerce & Industry (NOT MoSPI) [S1].
- Number of core industries increased from 8 to 9; new entrant: Iron Ore [S1].
- Old 8 core industries: Coal, Crude Oil, Natural Gas, Refinery Products, Fertilizers, Steel, Cement, Electricity [S5].
- Old core industries' combined weight in IIP: 40.27% [S5].
- New series highest-weight sector: Electricity (30.932%); old series highest-weight sector: Refinery Products (28.04%) [S1][S5].
- Steel measurement changed from net to gross production in new series [S1].
- Coal category simplified to raw coal only, dropping coal middling and washed coal [S1].
- Linking factor between old and new ICI series: 1.47 [S1].
- Back series (2022-23 base) available from April 2023 onward [S1].
- First press release date of new ICI series: 20 July 2026, covering June 2026 (Provisional Estimates) [S1].
- June 2026 ICI value: 119.6; YoY growth 5.0% (up from 3.2% in May 2026) [S1].
- Iron Ore recorded highest June 2026 growth at +43.9% [S1].
- Q1 FY 2026-27 cumulative core sector growth: 3.6% vs 1.0% in the year-ago quarter [S1].
- MoSPI's parallel new IIP series (base 2022-23) was released on 1 June 2026 [S2].
8. Mains Relevance
- GS-III: Indian Economy — Growth, Development and Employment; Industrial Policy; issues relating to Statistical systems.
- Syllabus heading: "Effects of liberalization on the economy, changes in industrial policy and their effects on industrial growth" and "Statistics/Economic indicators used in planning."
- Possible Mains stems: 1. "Discuss the rationale behind periodic revision of base years for key economic indices in India. Examine the implications of the new base year (2022-23) for the Index of Core Industries." (GS-III, 15 marks) 2. "The Index of Core Industries serves as a leading indicator for the Index of Industrial Production. Critically evaluate its coverage, methodology, and limitations in capturing India's evolving industrial structure." (GS-III, 10/15 marks) 3. "Coordinated base-year revision across GDP, IIP, WPI and ICI in 2026 — assess its significance for macroeconomic policy-making and data comparability." (GS-III, 15 marks)
9. Related Topics to Study Next
- Index of Industrial Production (IIP) — parent index; core industries feed into IIP with ~40% weight [S5].
- GDP base year revision (2022-23) — parallel national accounts rebasing exercise in 2026 [S4].
- Wholesale Price Index (WPI) / Producer Price Index (PPI) new series — same 2026 rebasing wave [S3].
- DPIIT vs MoSPI mandates — distinguishing which ministry owns which economic index (common trap).
- National Statistical Commission / NSO — institutional architecture behind India's statistical system.
- Infrastructure financing (National Infrastructure Pipeline, PM Gati Shakti) — core industries as infra proxy.
- CPI base year revision — another pending/parallel rebasing exercise worth tracking.
10. Common Errors / Trap Areas
- Confusing ICI's nodal body (OEA, DPIIT, Commerce Ministry) with MoSPI, which runs IIP and GDP — these are different ministries despite closely linked indices [S1][S2].
- Assuming core industries are still eight — the new series has nine, with Iron Ore added [S1].
- Mixing up old vs new series weights (e.g., quoting Electricity's old weight of 19.85% instead of new 30.932%) [S1][S5].
- Treating the base year revision as a one-off ICI event — it's part of a coordinated 2026 revision spanning GDP, IIP, WPI/PPI too [S2][S3][S4].
- Misreading "provisional estimates" for June 2026 as final data — ICI monthly releases are always provisional and subject to revision.
11. Sources
- [S1] FIRST PRESS RELEASE OF INDEX OF CORE INDUSTRIES OF NEW SERIES WITH BASE YEAR 2022-23 — https://www.pib.gov.in/PressReleaseDetail.aspx?PRID=2286615 — (tier: 1)
- [S2] Press note on release of the Report of the Technical Advisory Committee on Base Year Revision of the All-India IIP from 2011-12 to 2022-23 / FIRST PRESS RELEASE OF ALL INDIA IIP OF NEW SERIES WITH BASE YEAR 2022-23 — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2267531 — (tier: 1)
- [S3] PRESS RELEASE ON NEW SERIES OF WHOLESALE PRICE INDEX, AND PRODUCER PRICE INDICES WITH BASE YEAR 2022-23 — https://www.pib.gov.in/PressReleaseDetail.aspx?PRID=2272872 — (tier: 1)
- [S4] NEW SERIES OF GROSS DOMESTIC PRODUCT (GDP) ESTIMATES WITH BASE YEAR 2022-23 — https://www.pib.gov.in/PressReleseDetailm.aspx?PRID=2233518 — (tier: 1)
- [S5] Index of Eight Core Industries (Base: 2011-12=100) monthly press releases — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2216458 — (tier: 1)