Section 7(2) in The Customs (Import of Goods at Concessional Rate of Duty) Rules, 2017
(2)The importer who has availed benefit of an exemption notification, prescribing observance of these rules may also clear the unutilised or defective imported goods, with the permission of the jurisdictional Deputy Commissioner of Customs or, as the case may be, Assistant Commissioner of Customs having jurisdiction over the premises where the imported goods shall be put to use for manufacture of goods or for rendering output service, within a period of six months from the date of import on payment of import duty equal to the difference between the duty leviable on such goods but for the exemption availed and that already paid, if any, at the time of importation, along with interest, at the rate fixed by notification issued under section 28AA of the Act, for the period starting from the date of importation of the goods on which the exemption was availed and ending with the date of actual payment of the entire amount of the difference of duty that he is liable to pay.
