Correct Answer: 1966

Solution : The correct option is 1966.

In India, a significant agricultural strategy known as the Green Revolution was first implemented in 1966. It was a collection of programs and tools designed to boost the nation's food output and agricultural productivity. The introduction of high-yielding crop varieties, enhanced irrigation methods, and the adoption of modern agricultural techniques were the main focuses of the Green Revolution in India. This program significantly contributed to India's transformation from a food-insecure country to one that produces enough food for itself.