(1)Except as otherwise provided in this Act, or any other law for the time being in force, duties of customs shall be levied at such rates as may be specified under [the Customs Tariff Act, 1975 (51 of 1975)] [ Substituted by Act 51 of 1975, Section 13, for " Indian Tariff Act, 1934 (32 of 1934)" (w.e.f. 2-8-1976).], or any other law for the time being in force, on goods imported into, or exported from, India.