Index of Core Industries (ICI)
The Index of Core Industries (ICI) is one of India's most critical monthly macroeconomic indicators.
What is the Index of Core Industries (ICI)?
The Index of Core Industries is a production index compiled and published monthly by the Office of Economic Adviser (OEA) under the Department for Promotion of Industry and Internal Trade (DPIIT), Ministry of Commerce and Industry, Government of India.
It measures the growth rate of key core sectors that act as the primary inputs for secondary manufacturing, construction, transport, and commercial operations.
Key Characteristics:
Publishing Agency: Office of Economic Adviser (OEA), DPIIT.
Release Frequency: Monthly (released around the 20th of every month).
Base Year: 2022–23 (Updated from 2011–12 series).
Connection to IIP: Accounts for 32.88% of the total weight in the broader Index of Industrial Production (IIP)compiled by the National Statistical Office (NSO).
List of Core Industries and Their Sectoral Weightages
Under the updated series framework, the index covers nine core industries.
| Core Industry | Sectoral Weightage (Base Year 2022–23) | Key Component Coverage |
|---|---|---|
| 1. Electricity | 30.93% | Generation from Thermal, Hydro, Nuclear, Renewables, and imports. |
| 2. Refinery Products | 22.57% | Total crude throughput processed at domestic refineries. |
| 3. Steel | 17.58% | Production of alloy and non-alloy steel. |
| 4. Crude Oil | 7.43% | Total indigenous crude oil production. |
| 5. Coal | 5.59% | Total raw coal production (excluding washed coal to prevent double counting). |
| 6. Iron Ore | 4.90% | Total domestic iron ore extraction (added in the updated series). |
| 7. Cement | 4.41% | Production from large and mini cement manufacturing plants. |
| 8. Natural Gas | 3.84% | Total domestic natural gas extraction. |
| 9. Fertilizers | 2.73% | Production of Urea, DAP, NPK, and complex fertilizers. |
| Total | 100.00% | 32.88% Share in IIP |
Key takeaway for UPSC & competitive exams: Electricity carries the highest weightage (30.93%), while Fertilizers holds the lowest weightage (2.73%) in the index.
Difference Between ICI and IIP
| Feature | Index of Core Industries (ICI) | Index of Industrial Production (IIP) |
|---|---|---|
| Compiling Authority | Office of Economic Adviser (DPIIT) | National Statistical Office (NSO, MoSPI) |
| Scope | Covers 9 specific foundational sectors | Covers entire industrial sector (Mining, Manufacturing, Electricity) |
| Timeliness | Leading indicator, published ~12–15 days before IIP | Broader lagged indicator |
| Primary Focus | Supply-side infrastructure bottlenecks | General industrial volume and economic growth |
Why is the Index of Core Industries Important?
Leading Economic Indicator: Because core industries provide raw materials and energy for manufacturing, a surge in ICI indicates upcoming growth in general industrial output (IIP) and GDP.
Monetary & Fiscal Policy Formulation: The Reserve Bank of India (RBI) and the Ministry of Finance use ICI data to evaluate capital expenditure (CapEx) trends, private sector demand, and inflationary supply bottlenecks.
Infrastructure Readiness Assessment: Fluctuations in cement and steel directly reflect real estate and national infrastructure development (e.g., highways, railways).
Market & Investment Signals: Stock markets and commodity analysts monitor ICI numbers to gauge corporate earnings potential across energy, metals, and banking sectors.
Frequently Asked Questions (FAQs)
Q1. What is the base year for the Index of Core Industries?
The base year for the ICI is 2022–23.
Q2. Who releases the Index of Core Industries in India?
The ICI is compiled and released monthly by the Office of Economic Adviser (OEA) under the Department for Promotion of Industry and Internal Trade (DPIIT), Ministry of Commerce and Industry.
Q3. Which industry has the highest weightage in the Index of Core Industries?
Electricity holds the highest weightage at 30.93%, followed by Refinery Products (22.57%) and Steel (17.58%).
Q4. How many industries are included in the Core Industry Index?
There are nine core industries: Electricity, Refinery Products, Steel, Crude Oil, Coal, Iron Ore, Cement, Natural Gas, and Fertilizers.
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