Why this matters now
Urbanisation spans geography, economy and governance. UPSC tests its trends, the settlement classification, the challenges (slums, congestion) and the policy responses (Smart Cities, AMRUT).
Trends and patterns
India is urbanising steadily — roughly a third of its people live in urban areas, and the share is rising. Growth is concentrated in large cities and metropolitan agglomerations, with the rise of million-plus cities and new census towns. Urbanisation correlates with industrialisation and the services economy.
Classification of urban settlements
Urban centres are classified by population and function — from towns to cities, million-plus cities, metropolitan (10 lakh+) and megacities (1 crore+). Functionally, settlements may be administrative, industrial, commercial, transport, mining or cultural towns.
Challenges of urbanisation
Rapid, unplanned growth brings: housing shortages and slums, strained water/sanitation and transport, traffic congestion and pollution, solid-waste problems, urban flooding, and pressure on civic finances and governance. Inclusive, sustainable urban planning is the key challenge.
Policy responses
Government initiatives include the Smart Cities Mission, AMRUT (urban infrastructure), PMAY-Urban (housing), the Swachh Bharat Mission (sanitation) and metro-rail expansion, alongside the 74th Constitutional Amendment empowering urban local bodies.
UPSC angle
Know the urban-settlement classification (metropolitan = 10 lakh+, megacity = 1 crore+), the challenges (slums, congestion, services), and the policy schemes (Smart Cities, AMRUT, PMAY-U).
Frequently asked questions
What is urbanisation?
The increasing share of a population living in urban areas (towns and cities), driven by industrialisation and the growth of services.
What is a metropolitan city in India?
An urban agglomeration with a population of one million (10 lakh) or more; a megacity has 10 million (1 crore) or more.
What are the main challenges of urbanisation in India?
Housing shortages and slums, strained water/sanitation and transport, congestion, pollution, waste and urban flooding.
What policies address urbanisation in India?
The Smart Cities Mission, AMRUT, PMAY-Urban, the Swachh Bharat Mission and the 74th Amendment empowering urban local bodies.