Excise duty or countervailing duty on excisable articles

21. (1) The Government may, by notification, levy an excise duty on any excisable article manufactured or produced in the Union territory under any licence or permit granted under this Act at such rate, not exceeding the rates mentioned in Schedule I as may be specified in the notification. (2) The Government may by notification, levy a countervailing duty on any excisable article manufactured or produced elsewhere in India and imported into the Union territory under a licence or permit granted under this Act at such rates as may be specified in the notification, which may not exceed the rates of excise duty on similar excisable articles levied under sub-section (1). (3) Different rates may be specified under sub-sections (1) and (2) for different kinds of excisable articles and for different modes of levying duties under section 22.