Urbanisation

Story hook

On 25 June 2015, Prime Minister Modi launched three simultaneous urban missions from Vigyan Bhawan in Delhi — Smart Cities Mission, AMRUT (Atal Mission for Rejuvenation and Urban Transformation), and PMAY-Urban (Pradhan Mantri Awas Yojana). The Smart Cities Mission alone proposed to transform 100 cities with ₹2 lakh crore over five years; eight years later, the mission has been extended to March 2025 and delivered ~7,200 projects worth ~₹1.4 lakh crore. Some cities became showcases (Bhubaneswar, Pune, Surat); others struggled (Coimbatore, Ranchi).

Behind the missions lies a quieter, larger story. In 1951, only 17% of Indians lived in towns. By 2011, that was 31%; by 2024, 36%. The UN projects India will be **50% urban by 2050** — meaning another ~30 crore people will move into cities in 25 years. That is roughly equivalent to building a Mumbai (~20 million) every two years.

But the surface numbers hide deep complexity. India has more urban poor in slums (~7 crore) than the population of Germany. Mumbai's Dharavi is Asia's largest slum. Bengaluru's water trucks delivered the 2024 summer. Delhi's PM 2.5 has remained above 100 µg/m³ for the past decade despite GRAP. The 2020 COVID lockdown triggered the largest reverse migration in India since Partition — ~1.5 crore migrant workers walked back to their home villages. Cyclone Tauktae (2021) and Tauktae+Yaas showed coastal mega-cities cannot drain monsoons.

This file unpacks the urbanisation story — drivers, patterns, typology, migration links, and the policy machinery (Smart Cities, AMRUT, PMAY-U, Swachh Bharat, JNNURM).

Why this matters for UPSC

GS-I (geography), GS-II (governance — urban local bodies after 74th Amendment), GS-III (infrastructure, environment) all test this. Prelims has covered Smart Cities Mission criteria, AMRUT components, 74th Amendment provisions, migration definitions in 2017, 2018, 2020, 2022, 2024. Mains rewards critical analysis of urban governance failure, migration vulnerability, climate resilience. Interview boards probe Smart Cities outcomes, mega-city sustainability, migrant rights.