Correct Option: D

He introduction of high-yielding varieties of Indian seeds after 1965 and the increased use of fertilizers and irrigation are known collectively as the Indian Green Revolution, which provided the increase in production needed to make India self-sufficient in food grains. The programme was started with the help of the United States-based Rockefeller Foundation and was based on high-yielding varieties of wheat, rice, and other grains that had been developed in Mexico and in the Philippines. The major benefits of the Green Revolution in India were experienced mainly in northern and northwestern India between 1965 and the early 1980s; the programme resulted in a substantial increase in the production of food grains, mainly wheat and rice. Food-grain yields continued to increase throughout the 1980s.