Maize (Zea mays L) is the third most important food crops after rice and wheat in India. It is one of the most important and versatile crop of Bihar having wider adaptability under varied agro-climatic conditions. It is grown for feed, fodder and industrial purposes. Maize serves as a basic raw material for thousands of industrial products such as starch, protein, oil, alcoholic beverages, cosmetic, pharmaceutical, gum, textile and paper industries. The climate of Bihar is best suited for the cultivation of maize crop and grown throughout the year for various purposes including grain, feed, fodder, green cobs, sweet corn, baby corn and pop corn. The United States of America (USA) is the largest producer of maize contributes nearly 35% of the total production in the world.