NEW DELHI: India’s summer-sown corn output is likely to drop more than 15 per cent this year as the first back-to-back drought in three decades wilts crops and forces farmers to let land lie fallow, trade and industry officials said. Lower output in the main exporter of corn to Southeast Asia, at a time when the world is flush with Latin American and US supplies, should help underpin global prices of the grain that recently hit a 10-month low of $3.46 per bushel.