therefore, in exercise of the powers conferred by sub-section (1) of section 9A, read with the second proviso to sub-section (5) and sub-section (6) of that section of the said Customs Tariff Act and rule 23 of the Customs Tariff (Identification, Assessment and Collection of Anti-dumping Duty on Dumped Articles and for Determination of Injury) Rules, 1995.