Which Five Year Plan of India focused on rapid industrialization based

Which Five Year Plan of India focused on rapid industrialization based growth process ?

First Five Year Plan
Second Five Year Plan
Fifth Five Year Plan
Seventh Five Year Plan
This question was previously asked in
UPSC NDA-2 – 2023
The First Five Year Plan (1951-1956) primarily focused on agriculture and irrigation. The Second Five Year Plan (1956-1961), based on the Mahalanobis model, shifted the focus towards rapid industrialization, particularly emphasizing the development of heavy industries and infrastructure. The Fifth (1974-1979) focused on poverty eradication and self-reliance. The Seventh (1985-1990) aimed at growth in foodgrains production, employment, and productivity.
The Second Five Year Plan is known for its focus on rapid industrialization and heavy industries.
The Second Five Year Plan laid the foundation for India’s industrial structure by establishing large public sector undertakings in steel, coal, machine building, etc.