Natural sun drying is one of the most common ways to preserve agricultural product. the most purpose in drying farm manufacture is to reduce its water activity from the harvest level to the safe storage level in order to increase its shelf life. Once the product has been dried, its rate of deterioration because of respiration, insects, and microbial activity and biochemical reactions should diminish resulting in maintenance of quality of the stored product. It does improve bargaining position of the farmer to keep up comparatively constant value of his product. Drying reduces post-harvest losses and transportation prices since most of the water are taken out from the product throughout the drying method . In India, sun drying is the most typically used technique to dry the agricultural material like grains, fruits and vegetables. In sun drying, the garlic is spread in a very skinny layer on the bottom and exposed on to solar radiation, ambient temperature, wind velocity, relative h