tender for annual plan-raittem paramp drinking water project pipe line extension more water-project no-77/26-general civil work - plumbing line 2 15.2.2:demolishing cement concrete manually / by mechanical means including disposal of material within 50 metres lead as per direction of engineer - in-charge.nominal concrete 1:4:8 or leaner mix ( including equivalent design mix) 3 od165711/2025-2026:supplying and laying hdpe pipes pe 100,10.0 kg 50 mm outer dia including trenching and filling 4 od165699/2025-2026:supplying and laying hdpe pipes pe 100,10.0 kg 50 mm outer dia excluding trenching 5 od170640/2025-2026:providing and fixing pvc moulded fittings/ accessories for rigid pvc pipes, including jointing with pvc solvent cement -gunmetal non-return valve-horizontal (screwed end ) 40 mm dia 6 od165710/2025-2026:supplying and fixing 20 mm pvcpipe with saddle for house connection 7 4.1.4:providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - all work up to plinth level:1:2:4 (1 cement : 2 coarse sand (zone-iii) derived from natural sources : 4 graded stone aggregate 40 mm nominal size derived from natural sources)