Correct option is D
The First Five-Year Plan (1951-1956) primarily focused on agriculture, irrigation, and rural development.
The Green Revolution gained full momentum in the 1960s during the Third Five-Year Plan with the introduction of high-yielding varieties and modern agricultural practices.
The Father of the Green Revolution in India is Dr. M. S. Swaminathan.
- Fourth Five-Year Plan – Fourth Plan (1969-1974) was mainly focused on economic stability
- Second Five-Year Plan – Second Plan focused on industrialization.