India s sugar exports are likely to drop more than 24% in the current year to September due to logistical constraints such as a shortage of containers and congestion at the country s ports, a leading trade body said on Thursday. India, the world s second biggest sugar producer after Brazil, is likely to sell 4.3 million tonnes of the sweetener to the world market in the 2020-21 season against 5.7 million tonnes shipped in the previous year, said R.P. Bhagria, chief executive of the All India Sugar Trade Association (AISTA). Also, sugar shipments to Iran, a key buyer of India s sweetener, look likely to drop this year, Bhagria said.