Maize is the world’s primary coarse grain. It is a king of cereals. It has the ability to grow in diverse climates. Its production is concentrated in North America, especially the USA, South America and China. In India, Maize ranks as the most important food & feed crop next to rice and wheat. Major course grain of corn is used for animal feed. Presently single cross hybrids with wide adoptability revolutionized the production and productivity. (Corn production has nearly doubled in the last one and half decades largely due to the adoption of single cross hybrids).It’s penitrance to most of the non-traditional areas, thereby many fold area increased by replacing other field crops. Maize has a mind boggling multifarious end uses as food, feed and industrial by-products which is unmatched with any other crop.