Colonial rule produced a dualistic economy, with modern infrastructure and industries concentrated around coastal port hubs while vast agricultural hinterlands remained underdeveloped. Hence, after independence, India adopted planned development to pursue growth alongside balanced regional development.

Colonial Roots of Regional Imbalances

• Port-Centred Industry: Modern manufacturing clustered around Bombay, Calcutta, and Madras, creating spatially uneven industrial nodes.
• Export-Oriented Infrastructure: Railways linked raw material hinterlands to colonial ports (e.g., Bengal jute to Calcutta, Deccan cotton to Bombay) rather than integrating the domestic economy.
• Uneven Agrarian Investment: Disproportionate irrigation investment left regions like Bengal, Bihar, and eastern Uttar Pradesh relatively backward.
• Systemic Deindustrialisation: The decline of traditional artisan industries—especially across eastern India—widened regional disparities.

Planning as an Instrument to Correct Regional Imbalances

• 1. Industrial Dispersal: Public-sector investment was deliberately located in underdeveloped regions; Bhilai, Rourkela, and Durgapur steel plants anchored new industrial bases.
• 2. Infrastructure Equalization: Five-Year Plans prioritized irrigation, power, and transport in backward regions, exemplified by the Bhakra-Nangal project in northwest India.
• 3. Backward-Region Targeting: The Planning Commission’s 1969 Identification of Backward Areas report proposed objective criteria and fiscal subsidies to attract private investment.
• 4. Minimum Basic Services: Shifted focus towards equitable access to health, housing, and rural infrastructure via the Minimum Needs Programme under the Fifth Plan.
• 5. Targeted Regional Assistance: Special packages addressed local deficits, notably the Backward Regions Grant Fund (BRGF, 2006) covering 250 districts.
• 6. Balanced Agricultural Development: Spread Green Revolution benefits eastward through Bringing Green Revolution to Eastern India (BGREI), raising rice output across seven eastern states from 45.65 MT to 57.18 MT between 2009–10 and 2017–18.

Limits of Planned Economy in Removing Regional Imbalances

• 1. Persistent Inter-State Gaps: Post-1991 private capital preferred coastal states; Bihar and Jharkhand continue to lag behind Maharashtra and southern states in per capita income.
• 2. Uneven Industrialization: Public investments could not overcome structural locational disadvantages in attracting diversified private manufacturing.
• 3. Unequal Agricultural Gains: The early Green Revolution concentrated heavily in Punjab, Haryana, and western UP, accentuating agrarian disparities.
• 4. Resource-Development Paradox: Mineral abundance did not guarantee prosperity; the Eleventh Plan highlighted backwardness in mineral-rich Jharkhand, Chhattisgarh, and Odisha.
• 5. Intra-State Disparities: Backward pockets persisted within developed states; the Twelfth Plan noted acute deprivations in Vidarbha (Maharashtra), KBK districts (Odisha), and Bundelkhand (UP/MP).
• 6. Geographical Constraints: Mountainous terrains across the Himalayas and Northeast faced persistent connectivity and infrastructure deficits.

The lesson from India’s planning experience is that public investment can create foundations for convergence, but sustained balance requires strong institutions, human capital, and decentralized governance.