Replacement of Aluminium windows at South face and West face of North Block, 6th floor, Bikash Bhavan,Sector-I, Salt Lake City,Kolkata-91, during the year 2025-2026.

Supplying,fitting & fixing granite slab 15mm to 18mm thick in floor, lobby, stair, landing and treads etc. over 20mm (avg) thick base of cement morter (1:2) laid with white cement slurry @ 4.40Kg per Square meter before placing of granite and jointed with white cement slurry @ 2.0 Kg per square meter with necessary pigments and complete as per direction of Engineer-in-charge including cost of all materials, labours, curing and roughening of concrete surface complete. In 6th floor (a) Area of each Granite slab upto 0.60 to 1.0 Square meter

Extra cost of labour for prefinished and premoulded Nosing to treads of steps, railing, window sill etc. of Kota Stone.

Supplying profiles of required section made of Aluminium Alloy Extrusions conforming to IS: 732-1983 and IS: 1285- 1975; Annodized (with required film thickness and specified colour / natural) matt finished conforming to IS: 1868-1983 for fabrication of composit door, sliding & casement windows, partitions, formed of basic sections of any ISI embossed / certified make and brand as per direction of Engineer - In- Charge. (Payment will be made on finished length of the work). (B) 15 Micron colour annodizing. a) 2- track sliding window i) Bottom frame ( 6TH FLOOR)

(B) 15 Micron colour annodizing. a) 2- track sliding window ii) Top and side frame. (6th floor)

(B) 15 Micron colour annodizing. d) Shutter for all track sliding window. i) Bottom & Top member

(B) 15 Micron colour annodizing film d) Shutter for all track sliding window.ii) Style side member (6th floor)

(B) 15 Micron colour annodizing film d) Shutter for all track sliding window.ii) Interlock member( 6th floor)

Supplying EPDM gusket of approved make and brand as per direction of Engineer in charge. i) For sliding windows a) ' T' shaped EPDM gasket for frames

Supplying EPDM gusket of approved make and brand as per direction of Engineer in charge. i) For sliding windows a) ' U' shaped EPDM gasket for frames

Supplying PVC rollers for sliding windows as per direction of Engineer in charge

Supplying maruti lock (100mm)

Filling the gap in between aluminium frame & adjacent RCC / Brick/ Stone work by providing weather silicon sealant over 6mm dia backer rod of approved quality as per architectural drawings and direction of Engineer-in-Charge complete. Upto 5 mm depth and 5 mm width (a) 6th Floor

Supplying profiles of required section made of Aluminium Alloy Extrusions conforming to IS: 732-1983 and IS: 1285- 1975; Annodized (with required film thickness and specified colour / natural) matt finished conforming to IS: 1868-1983 for fabrication of composit door, sliding & casement windows, partitions, formed of basic sections of any ISI embossed / certified make and brand as per direction of Engineer - In- Charge. (Payment will be made on finished length of the work). (A) In 10-12 Micron thickness Annodizing film (i) Colouredg (a) Fixed glazing. i) Top, bottom and side member 6th floor

Supplying bubble free float glass of approved make and brand conforming to IS: 2835-1987; (A) clear, toughened glass conforming to IS: 2553-1992 (part-II) (i) 6mm thick

Labour charge for fabrication and installation of composite door, window, partitions made from annodized extruded alloy aluminium sections for the following units:- (A) Glazed aluminium sliding windows made of extruded and annodized alloy aluminium sectios, fabrications, including cutting to proper shape and size, drilling and aligning of window shutter frame fitted with in built locking arrangements, sliding rollers and other necessary fittings, fixture, adhesives and joineries along with extruded neoprine or EPDM gasketing in between window frame and masonry work (walls, column, beam.lintels etc.) as well as between glass and shutter frame for fixing glass and Polysulphide sealant and in between shutter and window frame where necessary including cutting to requisite size and fixing glass as per drawing, specification and direction of EIC. The rate includes the hire charge of all tools and plants, including all incidental charges, adhesive, joineries such as screw, cleat angle etc. but excluding the cost of extruded aluminium sections, glass, neoprene / EPDM gasket, locking arrangement and rollers. i ) 2 track sliding window.( 6th floor)

iv ) Fixed glazing. (6th floor)