tender for extension of pipeline at jayam nagar,ezhil nagar and kuberan nagar in chettipalayam town panchayat.; 1 earth work excavating and depositing on bank with initial lead of 10 metre and initial lift of 2 metre in hard stiff clay, stiff block cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders as per standard specification 2 supply and delivery90 mm pn6hpde pipes pe 100 as per is 4984/2016including all cost and conveyance of all materials etc., complete 3 90mm pn6hpde pipes pe 100 as per is 4984/2016 4 lowering of90 mm pn6hpde pipes pe 100 as per is 4984/2016 to trench with in a lead of 200m lowering in to a trench carefully laying to proper grad and alignment and as directed by twad officers 5 90mm pn6hpde pipes pe 100 as per is 4984/2016 6 refilling with excavated earth other than sand complying with standard specification.