Onion (Allium cepa) is one of the important commercial vegetable crops grown in India. It is widely grown in different parts of the country mainly by small and marginal farmers. Indian Onion annually ranking second in the world. It is used as salad or cooked in various ways in all curries, fried, boiled or baked. It is also used in processed forms e.g. flakes, powder paste, pickles etc. It has very good medicinal value. Nutritive value of onion varies from variety to variety. Its major value is in its flavour. Onion ranks medium in calorific value, low in protein and very low in vitamins.
