The import of raw sugar at 25% duty has become unviable for millers due to the recent weakness of rupee against the US dollar. The government had, on Sep 8, allowed sugar mills and refineries to import 0.3 MMT raw sugar under tariff rate quota at a concessional duty of 25% for a period of 60 days in a bid to tide over any shortages in the run-up to Diwali. Importing sugar was viable when the government had issued a notification allowing imports.