In India, in the overall index of Industrial Production, the Indices of Eight Core Industries have a combined weight of 37.90%. Which of the following are among those Eight Core Industries? 1. Cement 2. Fertilizers 3. Natural Gas 4. Refinery products 5. Textiles Select the correct answer using the codes given below:

Updated 11 Apr 2026

Contents12
UPSC Prelims GS2012Indian Economy
  1. A1 and 5 only
  2. B2, 3 and 4 only
  3. C1, 2, 3 and 4 only
  4. D1, 2, 3, 4 and 5
Show answer

Answer: (C) 1, 2, 3 and 4 only

India's Eight Core Industries (with their approximate weights in IIP) are:

  • Coal
  • Crude Oil
  • Natural Gas
  • Refinery Products
  • Fertilizers
  • Steel
  • Cement
  • Electricity.

Statements 1-4 (Cement, Fertilizers, Natural Gas, Refinery Products) are all part of this list.

Statement 5 (Textiles) is NOT a core industry — though textiles is a major sector for employment and exports, it is not included in the eight core industries index.

Remember the mnemonic: 'CCFERNSE' (Coal, Crude, Fertilizers, Electricity, Refinery, Natural gas, Steel, cEment).

Answer: 1, 2, 3 and 4 only.

Why this was asked

The Eight Core Industries account for about 40% of India's Index of Industrial Production and over 38% of manufacturing sector weight in GDP.

UPSC tests this because these eight sectors drive India's industrial growth - any slowdown in core industries directly impacts overall economic performance and policy decisions.

Eight Core Industries of India

Indian Economy Eight Core Industries Cement Fertilizers Natural Gas Refinery products

Eight Core Industries: Complete List & IIP Weights

Must know

Eight Core Industries have 37.90% weight in India's Index of Industrial Production (IIP)

Mnemonic: CC-FERN-SE (Coal, Crude Oil, Fertilizers, Electricity, Refinery, Natural Gas, Steel, Cement)

Textiles is NOT a core industry despite being major employment sector

Good to know

Core industries data released monthly by Ministry of Commerce & Industry

What Are Core Industries

The Eight Core Industries are infrastructure sectors that form the backbone of industrial production in India. They account for 37.90% of the total weight in the Index of Industrial Production (IIP) and serve as leading indicators of economic performance.

Complete List with Weights

Core Industry

Approximate Weight in IIP (%)

Key Role

Coal

10.33

Energy security, power generation

Crude Oil

8.98

Energy, petrochemicals base

Natural Gas

6.88

Clean fuel, fertilizer production

Refinery Products

28.04

Petroleum products, transportation fuel

Fertilizers

2.63

Agricultural productivity

Steel

17.92

Construction, manufacturing

Cement

5.37

Infrastructure, construction

Electricity

19.85

Industrial production, services

Key Features

Monthly data release by Office of Economic Adviser, Ministry of Commerce & Industry

Leading indicator - core industries data comes before full IIP data

Base year 2011-12 with index value 100 for reference

Growth rate calculation done year-on-year for policy decisions

Question Analysis

This question tested direct recall of the eight core industries list. Cement, Fertilizers, Natural Gas, and Refinery Products (statements 1-4) are all core industries. Textiles (statement 5) is the trap - though textiles is crucial for employment and exports, it's not included in the core industries index.

Exam traps

Textiles seems like a core industry due to its employment importance but is NOT in the official list

Don't confuse core industries with priority sectors - different classifications

Refinery Products has the highest weight (28.04%) among all eight industries

Natural Gas and Crude Oil are separate core industries - don't club them as 'petroleum'

Remember the exact count: Eight core industries, not seven or nine

Index of Industrial Production (IIP)

Indian Economy Industrial Production IIP

Index of Industrial Production: Structure & Significance

Must know

IIP measures monthly industrial performance with base year 2011-12

Eight Core Industries contribute 37.90% weight in overall IIP

Good to know

Released monthly by Ministry of Statistics & Programme Implementation

What is IIP

The Index of Industrial Production is a key economic indicator that measures the growth rate of industrial production in India on a monthly basis. It uses 2011-12 as base year (index value 100) and covers manufacturing, mining, and electricity generation sectors.

IIP Sectoral Classification

Sector

Weight (%)

Coverage

Manufacturing

77.63

Consumer goods, capital goods, intermediate goods

Mining

14.37

Coal, crude oil, natural gas, metal ores

Electricity

7.99

Thermal, hydro, nuclear, renewable power

Use-Based Classification

Basic Goods (58.2% weight) - steel, cement, fertilizers, electricity

Capital Goods (8.2% weight) - machinery, equipment for production

Intermediate Goods (17.2% weight) - components, raw materials

Infrastructure/Construction Goods (12.3% weight) - cement, steel products

Consumer Durables & Non-Durables (4.1% weight) - automobiles, textiles

Exam traps

Base year is 2011-12, not 2010-11 or 2012-13

IIP covers industrial production only - excludes services and agriculture

Mining weight (14.37%) is much less than manufacturing (77.63%)

Quick estimates released ~6 weeks after reference month, final data comes later

Economic Indicators for Industrial Growth

Indian Economy

Key Industrial Growth Indicators in India

Must know

IIP, PMI, and GVA are primary indicators for measuring industrial performance

Core Industries growth strongly correlates with overall industrial growth

Good to know

Industrial indicators help in monetary policy and fiscal policy decisions

Major Industrial Indicators

Indicator

Frequency

Released By

Key Focus

Index of Industrial Production (IIP)

Monthly

MOSPI

Overall industrial output

Purchasing Managers Index (PMI)

Monthly

Private agencies

Manufacturing sentiment

Gross Value Added (GVA)

Quarterly

CSO

Sectoral contribution to GDP

Core Industries Growth

Monthly

Ministry of Commerce

Infrastructure sectors

Manufacturing PMI

Monthly

IHS Markit

Manufacturing activity

Policy Applications

RBI uses IIP data for monetary policy decisions and interest rate changes

Government tracks core industries for infrastructure investment priorities

PMI above 50 indicates expansion, below 50 shows contraction

Quarterly GVA data shows sectoral contribution trends to national income

Exam traps

PMI is a sentiment indicator, IIP measures actual production - different purposes

GVA at basic prices excludes taxes, GDP at market prices includes them

Core Industries data comes before full IIP - used as leading indicator