tender for providing extension of pipeline at mankuppam main road in banavaram panchayat , 63mm pvc pipe 6 ksc , earth work excvation and depositing on bank with intial lead and lift including all charges ) , laying and jointing of 63mm pvc pipe into trench , refilling the earth work after into trench , gst amount for providing service to government contract works for the above construction & maintenance works. { gst amount is the total gst amount for overall quoted amount (both construction and maintenance) above this row in column bb for all works in this package} (refer clause 13.2 & 13.3 of section 2 of instruction to bidders (itb) of sbd)