(1) Whereunder a trade agreement between the Government of India and the Government of a foreign country or territory, duty at a rate lower than that specified in the First Schedule is to be charged on articles which are the produce or manufacture of such foreign country or territory, the Central Government may, by notification in the Official Gazette, make rules for determining if any article is the produce or manufacture of such foreign country or territory and for requiring the owner to make a claim at the time of importation, supported by such evidence as may be prescribed in the said rules, for assessment at the appropriate lower rate under such agreement.
     (2) If any question arises whether any trade agreement applies to any country or territory, or whether it has ceased to apply to India or any foreign country or territory, it shall be referred to the Central Government for decision and the decision of the Central Government shall be final and shall not be liable to be questioned in any court of law.