Correct option is D
• The Second Five-Year Plan (1956–1961) emphasized heavy industries and the public sector, inspired by the Soviet model.
• The private sector was regulated through Industrial Licensing (License Raj).
• Helped lay the foundation for India’s self-reliant industrial base.
• Import substitution and foreign exchange saving were key goals.
• Created institutions like SAIL, BHEL, ONGC, and NTPC.
• Dominated sectors like steel, mining, energy, and transport.