The correct answer is option 2: 126.
The Ministry of Agriculture in India has officially categorized the country into 126 agro-climatic zones. Agro-climatic zones are geographical areas that have similar agricultural and climatic conditions. These zones consider factors such as temperature, rainfall, soil type, and crop suitability.
It is important to note that these zones play a crucial role in determining the type of crops that can be grown in different regions of the country. The categorization into 126 agro-climatic zones helps in better planning and allocation of resources for agriculture, promoting sustainable farming practices, and enhancing agricultural productivity.