(4)The importer while presenting a bill of entry shall at the foot thereof make and subscribe to a declaration as to the truth of the contents of such bill of entry and shall, in support of such declaration, produce to the proper officer the invoice, if any, [and such other documents relating to the imported goods as may be prescribed] [Substituted 'relating to the imported goods' by Finance Act, 2018 (Act No. 13 of 2018), dated 29.3.2018.].