procurement of point to multipoint for connectivity in the aor of hq 26 and 27sector ar , base station , core multiplexing , cpe connectorised , backhaul connectorised ( 10 links ) , multiplexing edge ( 4 fxs ) , sector antenna , directional antenna , fcbc , encryption switch ( commercial grade ) ( for 20 bs &60 cpe ) , ethernet surge protection , co-axial surge protection , line protection unit ( 20 line ) , line protection unit ( 4 line ) , chemical earthing ( dual pit earthing ) , installation charges , refurbishment of existing towers ( changing of all accessories including nut bolts of all sections , change of guy wire and change of all other accessories ) ( 51 mtr ) , refurbishment of existing towers ( changing of all accessories including nut bolts of all sections , change of guy wire and change of all other accessories ) ( 30 mtr ) , refurbishment of existing towers ( changing of all accessories including nut bolts of all sections , change of guy wire and change of all other accessories ) ( 15 mtr ) , gst