The country had exported 2.44 lakh tonnes of oilmeal in August, 2010, the Solvent Extractor's Association of India said.
The government is mulling a new arrangement for trade with Iran to ensure its exporters receive payments on time.
A section of exporters feels the Duty Entitlement Pass Book scheme should have been extended till the introduction of the GST.
India will push for removal of tax concessions in the tax treaty with Mauritius, which has agreed to begin talks.