Exemption from additional duty on sugar removes section 3 levy for tariff sub headings 1701.11 and 1701.12. The Central Government, acting under section 25(1) of the Customs Act, 1962, exempts all goods falling under tariff sub headings 1701.11 and 1701.12 from the whole of the additional duty leviable under section 3 of the Customs Tariff Act, 1975, on public interest grounds.