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Syllabus
🏛️ UPSC CSE
Subject:General Studies Paper I

Economic & Human Geography

Syllabus Unit: Geography of India & World

Why it matters

Chapter overview

Economic and human geography maps where people, cities, resources and infrastructure sit on India's physical template — why population clusters unevenly, why people migrate from village to city, where minerals and energy are mined, and how road, rail and port networks stitch the economy into one system. This topic is where GS-I geography meets economic development directly.

General Studies Paper I Geography of India & World 12%–15% weightage
Live Animation1 / 4
100
Bihar (density/km²)
93
West Bengal (density/km²)
78
Kerala (density/km²)
35
India average (density/km²)

1Population Distribution & Demographics

India's population is distributed with extreme unevenness, and its age structure is moving through the same demographic transition every industrialising nation has passed through.

Learning Objectives

  • State India's Census 2011 population, density and sex ratio figures and identify the highest/lowest density states.
  • Explain the three classic stages of the demographic transition model (high stationary, expanding, low stationary).
  • Define 'demographic dividend' and explain why India's dividend window is time-limited.
  • Identify the physical and economic factors (climate, soil, industry, irrigation) that explain uneven population distribution.

Key Terms

Population DensityPersons per sq. km; India's national average was about 382 (Census 2011), ranging from Bihar's ~1,102 to Arunachal Pradesh's ~17.
Sex RatioNumber of females per 1,000 males; India recorded 943 in Census 2011, its best since 1971.
Demographic TransitionThe historical shift of a population from high birth and death rates, through a rapid-growth middle phase, to low birth and death rates.
Demographic DividendThe economic growth potential from a large working-age (15-64) population relative to dependents; India's window is projected to last until roughly the mid-2050s to 2060s.

India's population — about 1.21 billion at Census 2011 and estimated to have crossed China's around 2023 — is spread across the country with extreme unevenness, shaped by climate, soil fertility, water availability and industrial development.

Key Census 2011 figures

  • National density: ~382 persons/km² — Bihar highest (~1,102), Arunachal Pradesh lowest (~17).
  • Sex ratio: 943 females per 1,000 males, the best recorded since 1971.
  • Literacy rate: 74.04% — Kerala highest, Bihar lowest among major states.
  • Uttar Pradesh is India's most populous state; Uttarakhand recorded among the highest decadal growth rates in the Himalayan belt.

The demographic transition model

Populations move through three broad stages: **Stage 1 (High Stationary)** — high birth and death rates keep growth near zero (pre-industrial societies); **Stage 2 (Expanding)** — death rates fall sharply due to healthcare/sanitation while birth rates stay high, causing rapid population growth (India through much of the 20th century); **Stage 3 (Low Stationary)** — birth rates fall to match low death rates, growth stabilises (urban India, Kerala today).

Key PointIndia as a whole is still transitioning from Stage 2 to Stage 3 — southern states like Kerala and Tamil Nadu have already reached near-replacement fertility, while states like Bihar and UP remain in Stage 2, producing sharp interstate demographic contrasts.
Common MistakeThe 'demographic dividend' is not automatic — it only pays off if the large working-age cohort is actually employed, skilled and healthy; otherwise it becomes a dependency burden instead of a dividend.