Exemption scope expanded: substitution adds fuses, lamp holders and ceiling roses to switches, plugs and sockets. Central Government amends Notification No. 144/89-Central Excises by substituting the opening paragraph wording 'switches, plugs and sockets' with 'switches, plugs, sockets, fuses, lamp holders and ceiling roses', thereby expanding the list of goods encompassed by the notification's tariff description and associated miscellaneous exemptions.