Organic farming is basically a holistic management system which promotes and improves the health of agro-ecosystem related to biodiversity, nutrient biocycles, soil microbial and bio-chemical activities. It emphasizes management practices involving substantial use of organic manures, green manuring and management of pests and diseases through the use of non-synthetic pesticides and practices. Thus, organic farming prohibits the use of harmful chemicals and promotes the use of renewable organic resources to maintain the soil productivity and to control the crop diseases and pests.