Green Revolution was most successful in _________.

The correct option is D Punjab, Haryana and UP
The Green Revolution in India refers to a period when agriculture in India improved due to the adoption of novel methods and technology in agriculture. The key leadership role played by the Indian agricultural scientist M. S. Swaminathan together with many others, earned him the popularly used title 'Father of Green Revolution of India'. The Green Revolution allowed developing countries, like India, to overcome poor agricultural productivity. Within India, this started in the early 1960s and led to an increase in food grain production, especially in Punjab, Haryana and Uttar Pradesh during the early phase. The main development was higher-yielding varieties of wheat, for developing rust resistant strains of wheat. The introduction of high-yielding varieties(HYV) of seeds and the increased quality of fertilizers and irrigation technique led to the increase in production to make the country self-sufficient in food grains, thus improving agriculture in India