INDEX OF EIGHT CORE INDUSTRIES (BASE YEAR: 2011-12=100) FOR MARCH, 2026

1. At a Glance

• The Index of Eight Core Industries (ICI) is a monthly production index of eight infrastructure-supportive sectors, released by the Office of the Economic Adviser, DPIIT, Ministry of Commerce & Industry [1].
• The eight industries together carry a 40.27% weight in the Index of Industrial Production (IIP), making ICI a high-frequency lead indicator of industrial activity [1][2].
• Examined frequently in Prelims (weights, base year, releasing ministry) and in GS-III Mains as a barometer of industrial growth.

2. Why in the News

• The March 2026 ICI (provisional) contracted by 0.4% YoY — a rare negative print — released on 20 April 2026 by PIB Delhi [1].
• It pulled down the FY 2025-26 cumulative ICI growth to 2.6% (provisional), sharply lower than recent years [2].

3. Background & Evolution

• ICI launched by the Office of the Economic Adviser (then under Ministry of Industry); successive base-year revisions: 1993-94 → 1999-2000 → 2004-05 → current 2011-12=100 [1].
• Originally a six-core index; expanded to eight with addition of Fertilizers and Cement.
• Weights derived from the IIP basket and pro-rated to sum to 100 [2].

4. Core Static Facts

• Releasing body: Office of the Economic Adviser, DPIIT, Ministry of Commerce & Industry [1]. (Note: NOT MoSPI, which releases IIP.)
• Base year: 2011-12 = 100 [1].
• Coverage in IIP: 40.27% by weight [1].
• Sectoral weights (sum to 100): Petroleum Refinery Products 28.04, Electricity 19.85, Steel 17.92, Coal 10.33, Crude Oil 8.98, Natural Gas 6.88, Cement 5.37, Fertilizers 2.63 [2].
• March 2026 combined ICI: −0.4% YoY (provisional) [1].
• Negative growth sectors (Mar 2026): Fertilizers, Crude Oil, Coal, Electricity [1].
• Final Feb 2026 ICI growth: 2.8% [1].
• FY 2025-26 cumulative growth (Apr–Mar): 2.6% (provisional) [2].

5. Multi-Dimensional Analysis

• Economic — Contraction in March, the closing month of FY, drags full-year ICI to 2.6% vs higher trend; signals weak industrial momentum at handover to FY 2026-27 [1][2].
• Sectoral — Cumulative FY26: Steel +9.1%, Cement +8.6% (construction-led) vs Crude Oil −2.8%, Coal −0.5%, Refinery −0.1%, Fertilizers −0.1%, Electricity +0.9% [2]; reflects construction strength but energy-supply softness.
• Administrative / Statistical — ICI is a provisional → final release with a two-month revision cycle (March's provisional vs February's final illustrates this) [1].
• Policy linkage — Feeds into IIP, GVA in manufacturing/mining/electricity GDP estimates by NSO/MoSPI, and RBI's monetary policy assessments.
• Environmental — Negative growth in coal, crude oil and electricity has dual reading: weak demand vs gradual energy transition; fertiliser dip touches food-security planning.

6. Recent Developments (last 12-18 months)

• 20 Apr 2026: ICI Mar 2026 released — combined index −0.4% [1].
• Feb 2026: Final growth 2.8% [1].
• Monthly releases for Nov 2025, Dec 2025, Jan 2026, Feb 2026, Apr 2026 issued by PIB on the standard schedule [3].
• FY 2025-26 closes at 2.6% cumulative, decelerating from earlier years [2].

7. Prelims Hooks

• ICI base year: 2011-12 [1].
• Releasing ministry: Ministry of Commerce & Industry (DPIIT, Office of Economic Adviser) — not MoSPI [1].
• ICI weight in IIP: 40.27% [1].
• Highest-weighted core industry: Petroleum Refinery Products (28.04) [2].
• Lowest-weighted core industry: Fertilizers (2.63) [2].
• Eight industries: Coal, Crude Oil, Natural Gas, Refinery Products, Fertilizers, Steel, Cement, Electricity [1].
• March 2026 combined ICI: −0.4% YoY (provisional) [1].
• Sectors with negative growth in Mar 2026: Fertilizers, Crude Oil, Coal, Electricity [1].
• February 2026 final ICI growth: 2.8% [1].
• FY 2025-26 cumulative ICI growth: 2.6% [2].
• Strongest FY26 cumulative performer: Steel (+9.1%) [2].
• Weakest FY26 cumulative performer: Crude Oil (−2.8%) [2].
• ICI is a lead indicator for IIP since it is released earlier in the cycle.
• ICI excludes manufacturing items like automobiles, textiles; it is an infrastructure/intermediate-goods index.

8. Mains Relevance

• GS-III — Indian Economy: Growth, Industrial Policy, Infrastructure.
• Syllabus heads: "Issues relating to planning, mobilization of resources, growth, development"; "Infrastructure: Energy, Ports, Roads".
• Question stems: 1. "Despite resilient construction-linked core sectors, India's Eight Core Industries growth has decelerated in FY 2025-26. Examine the structural drivers." 2. "Discuss how the Index of Eight Core Industries serves as a lead indicator for the Index of Industrial Production. What are its limitations?" 3. "Energy-sector weakness in core industries is both a demand signal and a transition signal. Comment."

9. Related Topics to Study Next

• Index of Industrial Production (IIP) — ICI feeds 40.27% of it; released by MoSPI.
• PMI (Manufacturing & Services) — private high-frequency counterpart.
• GVA & GDP estimation methodology — uses ICI for quick estimates.
• National Statistical Office / MoSPI — releases IIP, CPI, GDP.
• PLI Schemes (Steel, Specialty Steel, Solar, etc.) — affect core sector capacity.
• National Infrastructure Pipeline & Gati Shakti — demand drivers for cement, steel.
• Energy transition / Coal India / ONGC output trends — explain negative coal/crude prints.
• Wholesale Price Index (WPI) — also from Office of Economic Adviser, same office.

10. Common Errors / Trap Areas

• Confusing the releasing body — ICI is by DPIIT/Commerce Ministry, IIP by MoSPI.
• Wrong base year — current is 2011-12, not 2004-05.
• Mis-ranking weights — many assume Coal or Electricity is highest; it is Refinery Products (28.04).
• Treating ICI as covering all manufacturing — it covers only eight infrastructure-linked sectors.
• Forgetting the revision cycle: latest month is provisional; figure two months prior becomes final.