The Union Territory of Delhi became a State in 1991. With many composite cultures, it is the largest commercial centre in North India. More than 75 per cent of the cultivated area of 74,000 hectares is irrigated. The major food crops are wheat, maize, fruits and vegetables. It has several industrial units manufacturing television, tape recorders, light engineering machines, automobile parts, bicycles, sports goods, footwear, textiles, medicines, fertilizers, leather goods, electronics, tele-communications, software and information technology. It has severe summers and cold winters. The average annual rainfall is 61 cm.