bids are invited for custom bid for services - total lumpsum charges including gst for sitc of earth pit using hot dipped 3 metres long perforated 65mm dia nb gi pipe medium classb with cap with 450mm x 450mm chamber cast iron cover as per tender terms and conditions tot.. , custom bid for services - total lumpsum charges including gst for supplying and laying 25mmx5mm gi strip at 50 cm below ground as strip earth electrode including connection terminating with gi nut bolt spring washer as required as per tender terms an.. , custom bid for services - total lumpsum charges including gst for providing and fixing 25mm x 5mm gi strip on surface or in recess for connections as required as per tender terms and conditions total quantity 1800 , custom bid for services - total lumpsum charges including gst for providing and laying 6 swg dia gi wire on surface or in recess for loop earthing along with existing surface recessuit submain wiringcable as required as per tender terms and condition..