petitioner, before 01.03.2013, there was no export duty on ilmenite and from 01.03.2013, the Central Government vide Notification No.15/2013-Cus., dated 01.03.2013 has imposed 10% export duty on ilmenite, unprocessed and 5% on ilmenite, upgraded (beneficiated ilmenite including ilmenite ground) (2.5% w.e.f., 01.03.2015 vide Notification No.08/2015-Cus., dated 01.03.2015). As the petitioner's product is processed and upgraded ilmenite, the petitioner sought for filing shipping bill with 5% export duty by classifying the product under Chapter Heading No.26140020. But, the Department insisted for paying export duty @ 10% instead of 5% for the petitioner's product - upgraded ilmenite. Thereafter, the petitioner requested the Department vide protest letter dated 07.03.2014 to permit them to file shipping bills under CTH 26140020 by paying export duty @ 10% under protest. Thereafter, the Department vide its letter C.No.VIII/06/104/2012-Export, dated 11.03.2014, accorded permission for export of 'Ilmenite, Processed & Upgraded' @ 10% export duty under protest. Accordingly, the petitioner had filed 5 shipping bills for export of 'Ilmenite Upgraded (Processed)' by classifying them under Chapter Heading No.26140020 of Customs Tariff Act, 1975 and paid duty @ 10% under protest by mentioning 'under protest' in the body of the shipping bills itself and Department had allowed export.