Emergent replacement of Galvanized Corrugated iron sheet with necessary allied work at the light structure of South Block, Bikash Bhavan , Kolkata-91, during the year 2025-2026.

Galvanised corrugated iron sheet work (excluding the supporting frame work) fitted and fixed with 10 mm. dia J or L hook-bolts, limpet and bitumen washers and putty complete with 150 mm. end lap and one corrugation minimum side lap. (Payment to be made on area of finished work)(GCI sheet to be supplied by contractor)m (i) In Roof:- a) With 0.60 mm thick sheet

M.S Structural works with hollow in roof trusses with tubular sections ( TATA make suare or rectangular shape conforming to IS: 806-1957 & IS: 1161-1958) CONNECTED TO ONE ANOTHER WITH BRACKET, GUSSET, CLEATS AS PER DESIGN, DRAWING & direction of Engineer-in-Charge (i) For roof truss works (1) Span Beyond 12 Mtr and up to 20.00 Mtr.

(a) Priming one coat on steel or other metal surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc.

(A) Painting with best quality synthetic enamel paint of approved make and brand including smoothening surface by sand papering etc. including using of approved putty etc. on the surface, if necessary (b) On steel or other metal surface : With super gloss (hi-gloss) -(iv) Two coats (with any shade except white):

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, alamoid/Bitumen/M-Seal etc) complete.A) UPVC Pipes: (i) 160 mm.Dia.

.A) UPVC Pipes: (i) 110 mm. Dia.

Dismantling carefully wooden walling, flooring of ceiling and stacking dismantled materials as directed.

P.V.C- False Ceiling : Providing False Ceiling made with framework of steel tube of 40mm x 20mm of not less than 18 gauge,the long and cross section will be welded with each other 1000mm to 1200mm apart the entire framework will be fixed in wall using rawlplug or gutties or screws etc. and suspended from ceiling with M.S flat 19mmx3mm as necessary,the entire frame will be painted with red oxide. PRINTED LAMINATED P.V.C Section 150mm x 12mmx 1.00mm (+/- 0.01mm) of approved quality and colour will be fixed on the frame so that the entire framework will not be visible from below P.V.C Section will be fixed with the frame with the help of self tapping steel screws including all materials and labour charges including fitting,fixing the same and hoisting including mending the damages in all respect and cost of paint as required as per direction of Engineerin- Charge . In 5th floor.