The primary objective of agricultural policies in India is to ensure food security, which means providing sufficient food to meet the needs of the entire population.

Cotton is not a major crop grown in India. The major crops grown in India are rice, wheat, maize, and pulses.

The Green Revolution refers to a period of rapid agricultural growth in India that was brought about by the introduction of new agricultural technologies, such as high-yielding varieties of seeds, fertilizers, and irrigation methods.

The Green Revolution led to increased agricultural production, reduced food prices, and improved nutritional status of the population. However, it also led to increased rural poverty, as small and marginal farmers were unable to compete with the larger and more mechanized farms.

The Public Distribution System (PDS) in India is a government program that provides subsidized food to the poor through a network of fair price shops that sell food grains at subsidized rates to ration card holders.

Climate change is not a challenge to food security in India. The major challenges to food security in India are drought, floods, and pest infestations.

Agricultural research plays a vital role in improving food security by developing new crop varieties that are resistant to pests and diseases, developing new agricultural technologies that increase crop yields, and developing new methods for storing and processing food.

Farmers play a vital role in ensuring food security by producing enough food to meet the needs of the population, adopting new agricultural technologies that increase crop yields, and conserving natural resources such as water and soil.

Consumers play a vital role in ensuring food security by reducing food waste, choosing foods that are produced locally and sustainably, and supporting farmers by buying their products.

Government plays a vital role in ensuring food security by investing in agricultural research and development, providing subsidies to farmers, and implementing food security programs.

International cooperation plays a vital role in ensuring food security by promoting trade in agricultural products, providing food aid to countries in need, and sharing agricultural technologies and knowledge.

The major challenges to achieving food security in India are drought, floods, pest infestations, and climate change.

The major strategies for achieving food security in India are investing in agricultural research and development, providing subsidies to farmers, implementing food security programs, and promoting trade in agricultural products.

Agriculture is the largest sector of the Indian economy, providing employment to a large number of people and contributing to the country's GDP.

Agriculture will continue to be a major sector of the Indian economy, but it will face challenges from climate change and other environmental factors. It is likely to become more mechanized and efficient in order to meet the growing demand for food.