Customs tariff amendments revise concessional duty entries and add parts and optical fibre items, changing import duty treatment. Further amendments to Notification No. 16/2000-Customs insert new concessional tariff entries for specified manufacturing inputs (including pile fabrics for toys, parts for electronic calculators, security systems, photographic cameras, electronic toys and video games, and optical fibre cables), substitute and clarify descriptions for cellular phones, radio trunking terminals and related parts, omit a listed sub-item, reduce specified concessional duty percentages in certain serial entries, add Ethernet switch/card and DWDM equipment to List 16, and specify the commencement of the amendment.