Know about rate of gst

28% for Electrical apparatus for switching or protecting electrical circuits, or for making connections to or in electrical circuits (for example, switches, relays, fuses, surge suppressors, plugs, sockets, lamp-holders, and other connectors, junction boxes), for a
voltage not exceeding 1,000 volts : connectors for optical fibres optical fibres, bundles or cables
[8536]

 and Electric sound or visual signalling apparatus (for example, bells, sirens, indicator panels,
burglar or fire alarms), other than those of heading 8512 or 8530 [8531]