CONSTRUCTION OF NEW WATER SUPPLY SCHEME AT MANGALDAI CIVIL HOSPITAL CAMPUS, MANGALDAI, DARRANG, ASSAM UNDER THE PROGRAMME SOPD-G

Amount

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. All kinds of soil.

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m.

Supplying and filling in plinth with sand under floors, including watering, ramming, consolidating and dressing complete.

Centering and shuttering including strutting, propping etc. and removal of form work for : Foundations, footings, bases for columns

Columns, piers, abutments, pillars, posts and struts

Foundations, footings, bases for columns for mass concrete

Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.

Suspended floors, roofs, landings, balconies and access platform

Lintels, beams, plinth beams, girders, bressumers and cantilevers

Stairs, (excluding landings) except spiral-staircases

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. Mild steel and Medium Tensile steel bars

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. Thermo- Mechanically Treated bars of grade Fe-500D or more.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:4:8 (1 cement : 4 manufactured sand derived from Recycled Concrete Aggregate (RCA) : 8 graded stone aggregate 40 mm nominal size Recycled Aggregate (RA)

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:3:6 (1 Cement : 3 coarse sand (zone-III) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources)

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size de rived from natural sources)

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement : 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size de rived from natural sources)

Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland /Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer-in-charge; for the following grades of concrete. All works upto plinth level Concrete of M25 grade with minimum cement content of 330 kg/cum

Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland /Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer-in-charge; for the following grades of concrete. All works upto plinth level Concrete of M30 grade with minimum cement content of 350 kg/cum

All works above plinth level upto floor V level Concrete of M30 grade with minimum cement content of 350 kg/cum

Cement concrete flooring 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate) finished with a floating coat of neat cement, including cement slurry, but excluding the cost of nosing of steps etc. complete. 40 mm thick with 20 mm nominal size stone aggregate

Brick work 7 cm thick with common burnt clay F.P.S. (non modular) brick of class designation 7.5 in cement mortar 1:3 (1 cement : 3 coarse sand) in superstructure above plinth level and upto floor five level.

Brick work with common burnt clay modular bricks of class designation 7.5 in foundation and plinth in: Cement mortar 1:4 (1 cement : 4 coarse sand)

12 mm cement plaster of mix : 1:4 (1 cement: 4 fine sand)

15 mm cement plaster on the rough side of single or half brick wall of mix : 1:4 (1 cement: 4 fine sand)

20 mm cement plaster of mix : 1:4 (1 cement: 4 coarse sand)

15 mm cement plaster on rough side of single or half brick wall finished with a floating coat of neat cement of mix : 1:4 (1 cement: 4 fine sand)

Brick on edge flooring with bricks of class designation 7.5 on a bed of 12 mm cement mortar, including filling the joints with same mortar, with common burnt clay non modular bricks: 1:6 (1 cement : 6 coarse sand)

Random rubble masonry with hard stone in foundation and plinth including levelling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) upto plinth level with : Cement mortar 1:6 (1 cement : 6 coarse sand)

Random rubble masonry with hard stone in superstructure above plinth level and upto floor five level, including leveling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) at window sills, ceiling level and the like. Cement mortar 1:6 (1 cement : 6 coarse sand)

Construction of Drain with cement concrete works in prop 1:2:4 in slope 1:50 with base layer of concrete of prop 1:4:8 as per respective approved drawings including necessary earth works and refilling after completion of work all complete as directed.

Construction of soakpit as per approved drawing.

Collection from the field and testing in the laboratory of undisturbed soil samples for sub- soil investigation (as per relevant I.S code) by open drive sampler (100mm dia boring) through clayey soil layer/ sandy soil layer/ sandy clay/ sandy silt layer/ clayey silt layer, conduction standard penetration test (SPT) and collection of SPT sampler, observation of ground water table, spot level survey to the bore location and carrying out R.L. from nearest B.M., laboratory test (particle size analysis, hydrometer test, determination of liquid limit, plastic limit, bulk density, moisture content, specific gravity,conducting triaxal test, direct shear test, unconfined compression test, consolidation test including preparation of sub-soil investigation report complete with necessary printing and binding (minimum 5 copies)

Providing corrugated G.S. sheet roofing including vertical / curved surface fixed with polymer coated J or L hooks, bolts and nuts 8 mm diameter with bitumen and G.I. limpet washers or with G.I. limpet excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required. (0.80 mm thick with zinc coating not less than 275 gm/ m²)

Providing and fixing hand rail of approved size by welding etc. to steel ladder railing, balcony railing, staircase railing and similar works, including applying priming coat of approved steel primer. M.S. Tube

Distempering with 1st quality acrylic distemper (ready mixed) having VOC content less than 50 gms/litre, of approved manufacturer, of required shade and colour complete, as per manufacturer's specification. Two or more coats on new work

Applying priming coats with primer of approved brand and manufacture, having low VOC (Volatile Organic Compound ) content. With ready mixed pink or grey primer on wood work (hard and soft wood) having VOC content less than 50 grams/ litre

Applying one coat of water thinnable cement primer of approved brand and manufacture on wall surface : Water thinnable cement primer

Finishing walls with textured exterior paint of required shade : New work (Two or more coats applied @ 3.28 ltr/10 sqm) over and including priming coat of exterior primer applied @ 2.20kg/10 sqm

Finishing walls with water proofing cement paint of required shade : New work (Two or more coats applied @ 3.84 kg/10 sqm)

Finishing walls with Acrylic Smooth exterior paint of required shade : New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 2.20 kg/10 sqm)

Finishing with Deluxe Multi surface paint system for interiors and exteriors using Primer as per manufacturers specifications : Painting wood work with Deluxe Multi Surface Paint of required shade. Two or more coat applied @ 0.90 ltr/10 sqm over an under coat of primer applied @0.75 ltr/10 sqm of approved brand and manufacture

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Providing and fixing M.S. grills of required pattern in frames of windows etc. with M.S. flats, square or round bars etc. including priming coat with approved steel primer all complete. Fixed to openings /wooden frames with rawl plugs screws etc.

Providing wood work in frames of doors, windows, clerestory windows and other frames, wrought framed and fixed in position with hold fast lugs or with dash fasteners of required dia & length (hold fast lugs or dash fastener shall be paid for separately). Kiln seasoned and chemically treated hollock wood

Providing and fixing 35 mm thick factory made laminated veneer lumber door shutter conforming to IS : 14616 and TADS 15:2001 (Part B), fixing with butt hinges of required size with necessary screws, all complete as per directions of Engineer-in-charge and panelling with panels of : 12 mm thick plain grade -1, medium density flat pressed three layer particle board FPT - I or graded wood particle board FPT- I, IS : 3087 marked, bonded with BWP type synthetic resin adhesive as per IS : 848

Providing and fixing aluminium work for doors, windows, ventilators and partitions with extruded built up standard tubular sections/ appropriate Z sections and other sections of approved make conforming to IS: 733 and IS:1285, fixing with dash fasteners of required dia and size, including necessary filling up the gaps at junctions, i.e. at top, bottom and sides with required EPDM rubber/ neoprene gasket etc. Aluminium sections shall be smooth, rust free, straight, mitred and jointed mechanically wherever required including cleat angle, Aluminium snap beading for glazing / paneling, C.P. brass stainless steel screws, all complete as per architectural drawings and the directions of Engineer-in-charge. (Glazing, paneling and dash fasteners to be paid for separately) : Anodised aluminium (anodised transparent or dyed to required shade according to IS: 1868, Minimum anodic coating of grade AC 15)

For shutters of doors, windows & ventilators including providing and fixing hinges/ pivots and making provision for fixing of fittings wherever required including the cost of EPDM rubber / neoprene gasket required (Fittings shall be paid for separately) Anodised aluminium (anodised transparent or dyed to required shade according to IS: 1868, Minimum anodic coating of grade AC 15)

Providing and fixing glazing in aluminium door, window, ventilator shutters and partitions etc. with EPDM rubber / neoprene gasket etc. complete as per the architectural drawings and the directions of engineer-in-charge . (Cost of aluminium snap beading shall be paid in basic item): With float glass panes of 4.0 mm thickness (weight not less than 10kg/sqm)

Providing and fixing G.I. chain link fabric fencing of required width in mesh size 50x50 mm including strengthening with 2 mm dia wire or nuts, bolts and washers as required complete as per the direction of Engineer-in-charge. Made of G.I. wire of dia 4 mm

Providing and fixing of Iron Gate at Boundary Wall (including Red Oxide primer and paint in gate)

Providing and erecting 2.00 metre high temporary barricading at site; each panel of size 2.50mx2.00m made of 40x40x6mm angle iron or 50x50x3mm hollow MS tube posts/horizontal members/bracings covered with 1.63mm thick MS sheet. The sheet shall be fixed with 30x5mm MS flat by suitable welding/riveting. The panels shall be made so that gap of 50cm above the ground is available making overall height as 2.5m. MS channel ISLC 75 @ 5.70 kg/m, 50cm long shall be provided at the bottom having oval shaped holes of size 50x25mm at both ends with 50cm long MS angle 40x40x6mm bracing. Suitable arrangement shall be made to fix the barricading to avoid from overturning by providing 250mm long expansion fasteners at both ends. The work shall be executed as per drawing/ direction of Engineer-in-Charge which includes writing and painting, arrangement for traffic diversion such as traffic signals during construction at site for day and night, glow lamps, reflective signs, marking, flags, caution tape as directed by the Engineer-in-Charge. The barricading provided shall be retained in position at site continuously i/c shifting of barricading from one location to another location as many times as required during the execution of the entire work till its completion. Rate include its maintenance for damages, painting, all incidentals, labour materials, equipments and works required to execute the job. The barricading shall not be removed without prior approval of Engineer-in-Charge.

Providing and fixing water closet squatting pan (Indian type W.C. pan ) with 100 mm sand cast Iron P or S trap, 10 litre low level white P.V.C. flushing cistern, including flush pipe, with manually controlled device (handle lever) conforming to IS : 7231, with all fittings and fixtures complete, including cutting and making good the walls and floors wherever required: White Vitreous china Orissa pattern W.C. pan of size 580x440 mm with integral type foot rests

Providing Ventilating Shaft 75 mm dia 3 meter height including Cowl on top

Providing and fixing PTMT bib cock of approved quality and colour. 15mm nominal bore, 86 mm long, weighing not less than 88 gms

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. External work 80 mm dia nominal bore

65 mm dia nominal bore

50 mm dia nominal bore

40 mm dia nominal bore

25 mm dia nominal bore

CI D/F Sluice valve with cap/wheel. As per IS 14846/2000 PN1.0 with ISI marking 80 mm sluice valve

65 mm sluice valve

50 mm sluice valve

Preparation of site for placement of the drilling rig including excavation of mud pit, circulation drain, collection chamber etc. all complete as directed.

Movement of Rig from the Divisional Head Quarter to the drilling site including cost of P.O.L. all complete as directed.

Transportation of all ancillary equipments, camp materials, welding set, rig accessories etc. from Divisional Head Quarter to worksite to and fro including cost of P.O.L. all complete as directed. Upto 100.00 Km distance from Divisional H.Q.

Transportation of all store materials like pipes, strainer, cone, socket, clamp, bentonite etc. from Divisional Head Quarter to worksite to and fro including cost of P.O.L. all complete as directed. Upto 100.00 Km distance from Divisional H.Q.

Transportation of P.O.L. all complete as directed.

Construction of temporary accommodation and low cost sanitary facility for drilling staff including cost of camp materials viz. cots, tables, chairs, utensils, dresses, safety helmets etc. and dismantling the accommodation after completion of the work all complete as directed.

Providing water supply facilities at drilling site all complete as directed. By installing 1 Nos. of Singur hand pump

Boring in soft soil / normal clay / sandy soil by bit of size either 5 5/8" or 6 7/8" or 7 7/8" and collecting sample of soil at every 3.0 m depth or wherever there is a change of strata in sample boxes with the distinguishing marks including arranging and carriage of necessary boring materials / tools / bentonite etc. and withdrawing the drill pipe for lowering well assembly etc all complete as directed.

Boring in hard soil / pebble / gravel by bit of size either 5 5/8"or 6 7/8" or 7 7/8" and collecting sample of soil at every 3.0 m depth or wherever there is a change of strata in sample boxes with the distinguishing marks including arranging and carriage of necessary boring materials / tools / bentonite etc. and withdrawing the drill pipe for lowering well assembly etc all complete as directed.

Reboring in soft soil / normal clay / sandy soil by bit of size either 8 1/2" or 9 5/8" or 12" from either 5 5/8" or 6 7/8" or 7 7/8" all complete as directed.

Reboring in hard soil / pebble / gravel by bit of size either 8 1/2" or 9 5/8" or 12" from either 5 5/8" or 6 7/8" or 7 7/8" all complete as directed.

Reboring in soft soil / normal clay / sandy soil by bit of size either 14" or 16" or 18" from either 8 1/2" or 9 5/8" or 12" all complete as directed.

Reboring in hard soil / pebble / gravel by bit of size either 14" or 16" or 18" from either 8 1/2" or 9 5/8" or 12" all complete as directed.

Extraction of drilling pipes / bits against skin friction at the end of each day and after completion of the operation including washing of the bore hole all complete as directed.

Labour charge for sinking, lowering, fitting, fixing in position of 150 mm dia U.P.V.C. pipe assembly comprising of strainer, pipes and cone in potable water bearing strata, washing the bore well etc. and supplying necessary jointing materials including carriage of materials and cleaning and priming the tube well all complete as directed. For 0 to 50 m depth

For 50 to 100 m depth

Developing of the D.T.W. with air compressor, Make- Kirloskar / Cumins all complete as directed.

Supplying and packing pea gravel around the periphery of casing including screening, washing etc. all complete as directed.

Extra 30% for loading & transportaion

Supplying, fitting, fixing MS clamp of size 15 mm thick and 150 mm width having projection of 300 mm and three holes of 20 mm dia for clamping the plates by 16 mm dia hexagonal bolts of length 75 mm and nuts on both sides encircling the column pipe including two coat of enamel paint over one priming coat of different dia all complete as directed and specified. 150 mm dia

150 mm dia UPVC Casing pipe

150 mm dia ribbed screen

Providing and fixing double scaffolding system (cup lock type) on the exterior side of building/structure, upto 25 metre height, above ground level, including additional rows of scaffolding in stepped manner as per requirement of site, made with 40mm dia M.S. tube, placed 1.5 metre centre to centre, horizontal & vertical tubes joint with cup & lock system with M.S. Tubes, M.S. tube challis, M.S. clamps and staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for execution of work of cleaning and/ or pointing and/ or applying chemical and removing it thereafter. The scaffolding system shall be stiffened with bracings, runners, connecting with the building etc, wherever required, if feasible, for inspection of work at required locations with essential safety features for the workmen etc., complete as per directions and approval of Engineer-in-charge.

Providing and fixing insulating board ceiling of approved quality with necessary nails etc. complete (frame work to be paid separately) : White face insulating board, 12 mm thick

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. 80 mm dia nominal dia Delivery Pipe

Overflow & Backwash pipe 65 mm dia nominal dia

Bronxe / Gunmetal Full Way Valve (Zoloto or Equivalent) 75 mm

Chequerred precast cement concrete tiles 22 mm thick in footpath & courtyard, jointed with neat cement slurry mixed with pigment to match the shade of tiles, including rubbing and cleaning etc. complete, on 20 mm thick bed of cement mortar 1:4 (1 cement: 4 coarse sand). Light shade pigment using white cement

Supplying, installation, testing and commissioning of Raw water submerssible pump set of different capacity at various PWSS under different divisions of the state. Supplying, installation, testing and commissioning of water lubricated Submersible Pump Set 3-Phase (for 5HP/ 7.5HP) / Single phase (for 1 HP / 2HP / 3 HP) pump with bronze impeller of suitable diameter all complete. The pump set should be coupled with wet type submersible electric motor drive of adequate power suitable for operation at 230V/ 415 V, 50 Hz input power including supply of steel cable rope, G.I. column pipe, suction strainer, Sluice Valve, Non-Return valve, sockets, bends, elbows etc. & GI delivery piping above ground up to sluice valve above ground level, electrical cable of adequate cross section, clips electrical switch gear (starter) etc. 5HP Submersible Pump, Discharge of the pump - 1.2 LPM, Make - Crompton Greaves.

Supplying, installation, testing and commissioning of Centrifugal pump set of different capacity at various PWSS under different divisions of the state. Supplying, installation, fitting & fixing, testing and commissioning of Electric driven 3-phase (for 5HP/ 7.5HP/10HP/12.5HP) / Single phase (for 1 HP / 2HP/ 3 HP pump) Centrifugal pump set of approved make with bronze impeller of suitable diameter with G.I. suction pipe, suction strainer, non-return valve, delivery piping up to sluice valve all complete. The pump set should be coupled with electric motor drive of adequate power suitable for operation at 230V / 415 V, 50 Hz input power with DOL Starter /Star delta Starter including Electric Control panel board enclosure made of MS Sheet duly painted with Anti- corrosive paints complete, fitted with all electrical accessories. 7.5HP Centrifugal Pump, Discharge of the pump - 161.5 LPM, Make - Crompton Greaves/Aquatic/CRI/GEC/ALSTHOM/V-Guard or equivalent.

Supplying, fitting, fixing including writing sign board with M.S flat frame board and the gauge of sign board plain sheet should be of 0.06m.

Supply, installation, testing and comissioning of electrically operated chemical dosing pump of 6 L capacity and 6 kg/cm2 complete with PVC solution mixing container and electrical wiring with panel board fitting and fixing at site with suction and discharge tubings.

External power connection from APDCL

Wiring for light point/ fan point/ exhaust fan point/ call bell point with 1.5 sq.mm FRLS PVC insulated copper conductor single core cable in surface / recessed medium class PVC conduit, with modular switch, modular plate, suitable GI box nd earthing the point with 1.5 sq.mm FRLS PVC insulated copper conductor single core cable etc. as required. Group C

Wiring for circuit/ submain wiring alongwith earth wire with the following sizes of FRLS PVC insulated copper conductor, single core cable in surface/ recessed medium class PVC conduit as required. 2 x 2.5 sq. mm + 1 x 2.5 sq. mm earth wire

4 x 10 Sq.mm + 2 x 6 Sq.mm Earth wire

Supplying and fixing following way, single pole and neutral,sheet steel, MCB distribution board, 240 V, on surface/ recess,complete with tinned copper bus bar, neutral bus bar, earth bar, din bar, interconnections, powder painted including earthing etc. as required. (But without MCB/RCCB/Isolator) 6 way, Double door

Supplying and fixing following rating, double pole, 240 V, MCB in existing MCB DB complete with connections, testing and commissioning etc. as required.

Supplying and fixing 5 A to 32 A rating, 240/415 V, 10 kA, "C"curve, miniature circuit breaker suitable for inductive load of following poles in the existing MCB DB complete with connections, testing and commissioning etc. as required. Single pole

Installation, testing and commissioning of pre-wired, fluorescent fitting/compact fluorescent fitting of all types, complete with all accessories and tube/lamp etc. Directly on ceiling/wall, including connection with 1.50 sq mm FRSL PVC insulated, copper conductor, single pole cable and earthing etc. as required.

Supplying, testing of 4 ft LED Tube light batten including all accessories as directed by the Dept. (Make : Philips)

Supplying, Installation, Testing and commissioning of 1200 mm sweep, BEE 5 star rated, ceiling fan with brussless direct current (BLDC) motor, class of insulation : B; 3 nos. Blades, 30 cm long down rod, 2 nos. Canopies, shackle kit, shafety rope, copper winding, power factor not less than 0.90, service value (CMM/W) minimum 6.85, air delivery minimum 215 CMM, 350 rpm (tolerance as per IS-374-2019), THD less than 10%, to be operate by electronic regualtor unit for speed control and all remaining accessories including safety pin, nut bolts, washer, temperature rise = 75 degree celcius (Max), insulation resistance more than 2 mega ohm, suitable for 230 V, 50 Hz, single phase AC supply, earthing, etc. complete as required.

Earthing with GI earth pipe 4.50 m long, 40 mm dia including all accessories, and providing masonry enclosure with copper plate having locking arrangement and watering pipe etc. with Charcoal coke and salt as required.

Supplying and fixing brass batten/ angle holder including connections etc. as required.

Providing and fixing 6SWG dia GI wire on surface or in recess as reuired.

Laying of 1 number PVC insulated and PVC sheathed/power cable of 1.1 KV grade of following size direct in ground including excavation, sand cushioning, protective covering and refilling trench etc. as required. Upto 35 sq. Mm

Supplying, testing, commissioning of miniature circuit breaker distribution board including brass bar and all accessories as directed by Dept. (Legrand or equivalent make). Basic price for IP66 Street light. Product ID - 5116877-67995124574

Providing and fixing following rating and breaking capacity and MCCB with thermo magnetic release and terminal spreaders including cubicle panel board including drilling holes in cubicle panel, incuding connections etc. as required. 100 A, 30 KA, FPMCCB

250 A, 50 KA, FPMCCB

Supplying and laying 25 mm x 5 mm GI strip at 0.5 m ground as strip earth electrode, including connections/fitting with GI nut, bolt, spring, washer, etc. as required.

Supplying and installation of 30 watt LED solar street light consist of SKWP solar module life PO4-12.8 Volt, 30 ah battery, 6m GI pole with necessary cables and hard wares including installation charge ( NENAVAID POWER, EXIDE or MNRE approved brand)

Supplying, fitting and fixing of 80 mm. dia.G.I. (M) air vent pipe in under ground sump,of length 450 mm. and with flanges at bothends, one being embedded in concrete and theother fixed with mosquito proof wire mesh (the wire mesh being facing the floor of the sump) with necessary nuts & bolts etc., all complete as directed and specified.

Supplying fitting and fixing of lightening aerestor system at roof of the reservoir including conductor strip and 2 nos plate earth station etc. complete as directed and specified.

RAJIB NARAYAN DEKA (BID ID -281404)

SRI DHANMANI DEKA (BID ID -281130)