Examine the challenges of urban primacy in India using Bengaluru's growth trajectory as a case study. Suggest measures for balanced regional development.

Urban primacy — the disproportionate concentration of population, capital and opportunity in one dominant city — defines much of India's urbanisation. Bengaluru, one of India's 53 million-plus urban agglomerations [1], illustrates both the gains of agglomeration and its mounting costs.

Bengaluru's growth trajectory

• Post-1990s IT liberalisation made the city the state's single engine, drawing IT-ITES, startups, aerospace and Global Capability Centres into one node.
• The Karnataka government's own "Beyond Bengaluru" mission concedes that this concentration made growth uneven, prompting a distributed digital-economy push across six clusters [2].

Challenges of urban primacy

• Infrastructure deficit: congestion, water stress and housing shortage arise as service networks lag population and vehicle growth.
• Planning capacity gap: NITI Aayog found a severe shortfall of qualified urban planners in India, with urban growth set to drive 73% of population rise during 2011–36 [3].
• Regional imbalance: rural and tier-2 districts export labour rather than retain it, widening intra-state disparity — visible in Karnataka's Kalyana-Karnataka region.
• Ecological cost: lake encroachment and loss of green cover raise flooding and heat risk.
• Governance strain: fragmented parastatals dilute the 74th Amendment's vision of empowered urban local bodies.

Measures for balanced regional development

• Cluster-based specialisation in tier-2 cities — Karnataka's model of PCB manufacturing at Mysuru, fintech at Mangaluru and EV/drone industry at Hubballi-Dharwad [2] — anchored by plug-and-play infrastructure.
• Counter-magnet and satellite towns, on the lines of Gurugram–Noida for Delhi, supported by high-speed rail and expressway corridors.
• Strengthen urban planning cadres and municipal finance, as recommended by NITI Aayog [3].
• Leverage central missions — Smart Cities and AMRUT — to upgrade smaller towns rather than metros alone [4].

Balanced regional development is thus not a retreat from big cities but a widening of the growth base. Sustaining many economic engines — with devolved local governance and quality tier-2 infrastructure — would advance both SDG-11 on sustainable cities and the constitutional promise of equitable development.