tender for emergent replacement and refixing of damaged pipelines (outside) of new & old building of bidhannagar college, salt lake, kolkata-64 during the year 2024-2025. - upgradation of toilets and laboratory for establishment of international centre of excellence for data science, ai and furturistic technologies in 2nd floor of vacant space of makaut building at bf block, salt lake city, during the year 2024-2025. , supply of pvc pipes & fittings schedule 80 (medium duty) conforming to astmd - 1785 and threaded to match with gi pipes as per is : 1239 (part - i). (a) pvc pipes (dia) 25 mm , 40 mm , 80 mm , 100 mm , (d) longbend (90 degree) (dia) 40 mm , 100 mm , (e) tee (dia) 40 mm , 100 mm , labour for fitting and fixing high density poly-ethylene pipes or p.v.c. pipes for above ground work including cost of jointing materials paints etc. fitting and fixing all necessary specials, cutting pipes, making threads, cutting holes in walls or r.c. floor where necessary and mending good all damages excluding the cost of masonry or concrete work, if necessary, but including the cost and fitting and fixing holder bat clamps(any floor) or forundergroundworkincludingcuttingtrenchesupto1.5metreand refilling the same complete as per direction of the engineer-in-charge. (payment will be made on centre line measurement of the total pipeline including specials. ) (a)above ground (iii) 25 mm dia. , (v) 40 mm dia. , (viii) 75 mm dia. / 80 mm dia. , (ix) 100 mm dia. / 110 mm dia. , supplying, fitting & fixing upvc pipes a- type and fittings conforming to is:13592-1992 with all necessary clamps nails, including making holes in walls, floor etc. cutting trenches in any soil through masonry concrete structures etc if necessary and mending good damages including joining with jointing materails (spun yarn, valamoid/bitumen/m-seal etc) complete. a) upvc pipes: (iii) 160 mm. dia. , b) upvc fittings: a) plain tee (iii) 160 mm. dia. , c) bend 87.5 degree (iii) 160 mm. dia. , supply of upvc pipes (b type) & fittings conforming to is-13592-1992 (b)fittings xxi) reducing tee (160 x 110 mm) 75 mm , labour for dismantling g.i. pipe with fittings. (i) 25 mm , (ii) 40 mm , (iii) 80 mm , (iv) 100 mm , dismantling h.c.i. pipe with fittings including melting lead caulked joints. 150 mm , supply and labour [a (above ground) for fitting and fixing u.p.v.c. pipes (b type) & fittings conforming to is-13592-1992 (a) single socketed 3 meter length (a) 160 mm a) upvc pipes iii) 160 mm dia (rainwater pipe) , (b)fittings (i) plain tee (a) 160 mm , ix) bend 87.5º (a) 160 mm , making one set of scaffolding only for replacing glass panels, painting, uprooting plant and another repairing works of building and s&p works for external works only with 10 cm. dia bamboo as main posts at the rate of 1 metre centre to centre and 7.5 cm. dia bamboo ties @ 0.75 metre apart fitting and fixing with necessary coir, nails etc. as per direction of the engineer-in- charge. (this item should be executed only after prior approval of the engineer-in- charge). firstly, one number to be paid and then labour rate for shifting up to further nineteenth (19) times @ 10% each time to be considered. if necessary further after twenty times of total use, another one number new and labour rate for shifting to be considered accordingly. , for shifting , total: , add :gst - 18% (sgst = 9% & cgst = 9%) , add : west bengal labour welfare cess = 1%