Ghaziabad Development Authority Tender

M‐150 brick work in 1 :4 (one cement and four coarse sand of 2.20 F.M. mortar) in foundation and plinth including supply of all meterials, labour and T&P etc. required for proper completion of work. (SI No. 305(a)/2017)

12mm. Thick plaster with cement and coarse sand o 2.20 fineness modulus in 1:3 over brick work minimum thickness not be less than 1 cm .including supply of all materials, labour, T&P etc required for proper completion of work. (SI No. 583/2017)

Providing and laying water proofing treatment in sunken portion of WCs, bathroom etc., by applying cement slurry mixed with waterproofing cement compound consisting of applying : (a) First layer of slurry of cement @ 0.488 kg/sqm mixed with waterproofing cement compound @ 0.253 kg/ sqm. This layer will be allowed to air cure for 4 hours. (b) Second layer of slurry of cement @ 0.242 kg/sqm mixed with water proofing cement compound @ 0.126 kg/sqm. This layer will be allowed to air cure for 4 hours followed with water curingfor 48 hours. The rate includes preparation of surface, treatmentand sealing of all joints, corners, junctions of pipes and masonry with polymer mixed slurry. (A.R.)

Providing and fixing of Granite stone florring 18 mm thick gang saw cut, mirror polished, premoulded and prepolished, machine cut for kitchen platforms, vanity counters, window sills, facias and similar locations of required size,approved shade, colour and texture laid over 20 mm thick base cement mortar 1:4 (1 cement : 4 coarse sand), joints treated with white cement, mixed with matching pigment, epoxy touch ups, including rubbing, curing, moulding and polishing to edges to give high gloss finish etc. complete at all levels. Granite of any colour and shade. Area of slab over 0.50 sqm (A.R.)

Providing and laying of 80 mm thick M‐30 perforated power coated Interlocking C.C. Pavers including 4 cm thick local sand cushion and 3 cm thick local sand filling over entire surface of interlocking and gaps including cost of all materials labour T&P all complete of the work. (A.R.)

Providing and fixing of Italian marbal florring machine cut, mirror/ eggshell polished , Marblestone work for wall lining (veneer work) including dado, skirting, risers of steps etc., in required design and pattern wherever required, stones ofdifferent finished surface texture, on 12 mm (average) thick cement mortar 1:3 (1 cement : 3 coarse sand) laid and jointed with white cementslurry @ 3.3 kg/sqm including pointing with white cement slurry admixed with pigment of matching shade, including rubbing, curing, polishingetc. all complete as per Architectural drawings, and as directed by theEngineer‐in‐ Charge. (A.R.)

Construction of Granular Sub Base (GSB) by providing close graded material, spreading in uniform layer on prepared surface, mixing by mix in place method and rolling with vibratory roller to achieve the deisred density, complete as per clause 421 by mix in place method (A.R.)

Precasting and placing in position 125 mm dia Bollards 600 mm high ofrequired shape including providing M.S. Pipe Sleeve 50 mm dia 300 mm long in the Bollard and M.S. Pipes 40 mm dia and 450mm long with150x150x6mm M.S. plate welded at bottom and embedded 150mm in cement concrete 1:3:6 (1 Cement : 3 coarse sand (zone‐III) : 6graded stone aggregate 20 mm nominal size), including necessaryexcavation of size 250x250x450mm deep for the same in bitumen/ concrete pavement at specified spacing. (A.R.)

Providing and fixing of the Garden Bench in Dholpur Biege Sandstone on the location as per given drawing and directions (A.R.)

Providing and fixing wooden pergola (Product Specification :Center Height 9 to 10 feet, Waterproof Material Teak Wood , Frame Complete with surface finish with PU Polished as per the required design and shape as per the direction of Engineer in charge (A.R.)

Providing and fixing the Tensile Structure for temporary shops with following specifications ‐ Fabric ‐ 725 GSM; Yarn‐ 1100dtex. PES‐HT;Weight ‐ 590GSM ; Width ‐ 250cm; Breaking strength ‐ 3000/3000n/5cm; Tear Strength ‐ 300/300N & Adhesion ‐ 100n/5cm. Mild Steel tubular frame of thickness as per IS, with redoxide priemer; fixing of PVC membrane, heat welding /high frequency welding membrane; waterproofing of the structure and fixing metallic ribs, complete with DECOpaint of approved shade, all complete as per manufacturer's specifications & direction of Engineerin‐ Charge (A.R.)

Wiring for group controlled (looped) light point/fan point/exhaust fan point/ call bell point (without independent switch etc.) with 1.5 sq. mm FRLS PVC insulated copper conductor single core cable in surface/ recessed steel conduit, and earthing the point with 1.5 sq. mm FRLS PVC insulated copper conductor single core cable etc. as required. Group-C

Supplying, installation, testing, commissioning of the 20 Amp (IP 66) Industrial Type Socket controlled by 1 No. 20Amp. Switch with PVC insulated FRLS copper conductor wires in concealed/surface mounted FR PVC Conduit/ ceiling or floor mounted raceway/ Excavation including cost of cutting and filling chases as required with providing & fixing of 3 pin 16 Amps shuttered modular switch socket, switch plate with internal wiring, earthing of 3rd pin. The wiring shall be done with 2 x 4 + 1 x 2.5 Sqmm copper flexible wire and looping shall be done with 2.5 Sqmm.

Supplying, installation, testing, commissioning of following sizes of Heavy Duty PVC conduit on surface / recess including cutting/ filling chases along with conduit accessories etc. complete as required of following size 25 mm dia

Supplying, installation, testing, commissioning of following sizes of Heavy Duty PVC conduit on surface / recess including cutting/ filling chases along with conduit accessories etc. complete as required of following size : 32 mm dia

SITC of Light Fixtures: 20 WATT LED TUBELIGHT(WT201C LED20S-6500 PSU L120) Weather Proof

SUBMAIN WIRES/CABLES: Wiring for circuit/submain wiring alongwith earth wire with the 20 mm dia heavy duty (2 mm thick) PVC conduit with one No. 2.5 sq. mm. FRLSH PVC insulated multistrand copper conductor cable as earth contuiity wire drawn in conduit. (SI No. 216(c)/18)

Supply and wiring of submain with two number 4 sq.mm. FRLSH PVC insulated 1100 V grade multistrand single core copper conductor cable in 20 mm dia heavy guage rigid steel conduit concealed in wall, complete with one number 14 SWG copper earth continuity wire including matching colour wash etc., complete in all respect. (SI No. 216(b)/18)

Supply and wiring of submain with two number 6 sq. mm. FRLSH PVC insulated 1100V grade multistrand single core copper conductor cable in 20 mm dia heavy guage rigid steel conduit concealed in wall, complete with one number 14 SWG copper earth continuity wire etc. complete in all respect. (SI No. 217(b)/18)

Supply and wiring of submain with two number 6 sq. mm. FRLSH PVC insulated 1100V grade multistrand single core copper conductor cable in 20 mm dia heavy guage rigid steel conduit concealed in wall, complete with one number 14 SWG copper earth continuity wire etc. complete in all respect. 4 x 6 + 2 x 6 Sq.mm PVC insulated copper wires in conduits

Supply and wiring of submain with two number 6 sq. mm. FRLSH PVC insulated 1100V grade multistrand single core copper conductor cable in 20 mm dia heavy guage rigid steel conduit concealed in wall, complete with one number 14 SWG copper earth continuity wire etc. complete in all respect. 4 x 10 + 2 x 6 Sq.mm PVC insulated copper wires in conduits

DISTRIBUTION PANELS: This BOQ to be read in conjunction with technical specifications and Single Line Diagram If any discrepancy occurs that should be brought to the notice of Client/Consultant before quoting the price otherwise stringent condition will be deemed to have been considered. Feeder Panel Supply, Installation, Testing and Commissioning of cubicle type LT panel, IP42, suitable for 415V+/-10%, 3 Phase, 4 wire 50 Hz AC supply system fabricated in compartmentalized modular design from CRCA sheet steel of 2 mm thick for frame work and covers, 3 mm thick for gland, plates i/c cleaning & finishing complete with 7 tank process for powder coating in approved shade, having TPN Aluminium alloy bus bars for high conductivity, DMC/SMC bus bar supports,with short circuit withstand capacity of 25 KA for 1 sec, bottom base channel of MS section not less than 100 mm x 50 mm x 5 mm thick, fabrication shall be done in transportable sections, entire panel shall have a common copper earth bar of size 25 mm x 5 mm at the rear with 2 Nos. earth stud, solid / flexible connections from main bus bar to switchgears and from switchgear output to cable termination in cable alley with required size of AL conductors / bus bars and control wiring with 2.5 sqmm PVC insulated copper conductor cable (FRLS), cable alleys, cable gland plates in two half, i/c providing following switchgears / accessories as per specifications. INCOMER 1 Nos. 63 Amp, TP Moulded Case Circuit Breaker (Ics = Icu = 25 KA) with thermal magnetic based release with built in O/L & S/C release protection with Individual LED for fault indication for each fault. 1 Nos. 40 Amp DP MCB 10kA. 2 Nos. 40 Amp DP Contactor and 2 Nos. Timer for Automatic Operation. Incomer shall have the following items: Digital MF Meter( with Voltage, Current & Frequency) with selector switch and one set of 3 nos. CTs of ratio 60/5A , Class I accuracy and 15 VA burden- 1set. 3 Nos.phase indicating LED lamps each with 2 amp back up MCB. BUSBARS TPN aluminium bus bars of minimum 63 Amps capacity with heat shrinkable coloured sleeves and i/c, SMC bus bars supports at required intervals complete for cross section, size supports & their spacing etc. for withstanding fault level of 25 KA for 1 sec. OUTGOING 2 Nos. 32 Amp DP MCB with KWH Energy Meter 7 Nos. 10 Amp DP MCB (10 Ka) 9 Nos. 32 Amp SP MCB (10 KA) External Lighting Panel as described above

Supply and burying of 40mm dia x 4.5 metres long G.I. Pipe vertically for earthing having 12mm dia. Holes spaced 75mm apart drilled up to 2 metre from the bottom complete with earthing lead of No. 6 to 8SWG GI wire in G.I. Pipe up to appron (and from appron to switch board the cost of G.I. wire and pipe will be extra) upto switch board, 30cm square C.I. box with hinged cover masonary enclosure, funnel at top, alternate layers of charcoal/coke and salt at least 150mm thick alround etc. as per directions of Engineer-in-charge complete in all respects as per drawing. (SI No. 701/18)

Supply and laying of 25mm x 3mm G.I. strip from earth electrode directly in the ground as required complete in all respect. (SI No. 716/18)

Supply and fixing of one number 8 SWG G.I. wire in 15mm dia. G.I. pipe for earthing, laid in ground or in wall duly concealed including the cost of cement, sand, labour, T&P other material required for proper completion of the work as directed at site. (SI No. 721/18)

External Lighting The rates for fixing of lighting fixtures shall include all fixing accessories that may be required to make the installation complete in all respects. Internal wiring between accessories connecting wires wherever required. Earthing of fixtures. Approved enamel painting of poles, clamps and other components and fixing accessories. Supply, installation, testing and commissioning of 24W LED Solar Standalone System Philips Aluminum Integrated Solar Street Light, IP Rating: 66 consists of Solar LED Luminiare Solar Panel , Solar Low maintainence Flooded Battery (Luminous /Southern) , GI Battery Box and 6mtr Pole street light , provided with all duly wired , connection & wiring from junction box with 4 X 6 sqmm copper wires, Mounted on 6m high pole. Make:Phillips or Equivalent toTrilux, Artlight.

Supply, installation, testing and commissioning of Bollard Light 1 x 6 W (4000k), connection & wiring from junction box with 3 x 2.5 sqmm copper wires. Make: Bajaj Cat BGBOL 405, Ref NO: 111264. Equivalent to Philips, Artlight.

Supply, installation, testing and commissioning of 6W LED Tree Up Lighter with all Required Accesories , provided with all duly wired , connection & wiring from junction box with 3 X 2.5 sqmm copper wires. Make: Panasonic Cat Ref: ASK010063. Equivalent to Philips, Artlight.

Supply, installation, testing and commissioning of Decorative Pole with Double Arm Bracket and 30 Watt two nos Luminaire Make as per Lustre item No. Li – 8251-BKT42-9027 Equivalent to Philips, Artlight.

Supply, installation, testing and commissioning of 9W LED In-Ground IP 67 with all Required Accesories , provided with all duly wired , connection & wiring from junction box with 3 X 2.5 sqmm copper wires, in Under Water. Make:Panasonic Cat Ref: AGL01009A. Equivalent to Philips, Artlight.

Supply, installation, testing and commissioning of Narrow Beam Angle Light 10W LED Floodlight with 1 DEGREE ANGLE AND PROJECTION LENGTH SHALL BE MINIMUM 50 mtr with color temperature RGB & all Required Accesories , provided with all duly wired , connection & wiring from junction box with 3 X 2.5 sqmm copper wires, in Under Water. Any Make

Supply, installation, testing and commissioning of 9 W LED Green Light with all Required Accesories , provided with all duly wired , connection & wiring from junction box with 3 X 2.5 sqmm copper wires. Make: Bajaj Model no. 110790 BGBHL 03 01 G Green. Equivalent to Philips, Artlight.

Providing and fixing white vitreous china laboratory sink with C.I. brackets, C.P. brass chain with rubber plug, 40 mm C.P brass waste and 40mm C.P. brass trap with necessary C.P. brass unions complete, including painting of fittings and brackets, cutting and making good the wall wherever required : Size 600x450x200 m

Providing, fixing, Testing and Commissioning sink cock (wall mounted) with swivel spout and wall flange of approved quality colour and make including cutting and making good the wall wherever required.

Providing and Fixing UPVC pipes type -B conforming to IS: 13592 for soil, waste and vent pipes including all fittings rubber ring type (plain or with access door) e.g. bends, junctions, cowls, offsets, access pieces, clean out plug, jointing with rubber ring joints with lubricant etc. fixed with clamps to walls with cement concrete 1:2:4 blocks complete in all respects For soil, waste and vent pipes 110mm OD

Providing and Fixing 110x110 mm uPVC 'P' trap with 2-3 inlets required size ftting with seal 50 mm of self cleansing design floor/urinal trap without vent suspended with supporting clamp or in sunken portion including cutting and making good the walls and floors wherever required complete in all respects. 110 x110 mm outlet

Providing & fixing PVC inlet fitting with one or more inlets fabricated from 110 mm outer dia UPVC pipe and solvent welded sockets and fixed to UPVC Trap and set in cement concrete as per drawing complete

WATER SUPPLY SYSTEM G.I. Pipe Class B Supply and Fixing of G.I. Pipe Class-B, including all fittings as albow, socket and union etc. Size 20mm dia

Supply and Fixing of G.I. Pipe Class-B, including all fittings as albow, socket and union etc. Size 25mm dia

Supply and Fixing of G.I. Pipe Class-B, including all fittings as albow, socket and union etc. Size 32mm dia

Supply and Fixing of G.I. Pipe Class-B, including all fittings as albow, socket and union etc. Size 40mm dia

Supply and Fixing of G.I. Pipe Class-B, including all fittings as albow, socket and union etc. Size 50mm dia

Providing and fixing gun metal gate valve with C.I. wheel of approved quality screwed end all complet. Size 25mm nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality screwed end all complet. Size 20mm nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality screwed end all complet. Size 32mm nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality screwed end all complet. Size 50mm nominal bore

Supplying, installing, testing and commissioning single stage, submersible centrifugal pumps of closed coupled construction with CI body & cast iron (C.I) impeller connected to a fully submersible water/oil cooled motor suitable to operate with 380‐415 volts 3 phase 50 cycles AC power supply with class F insulation and built ‐in temperature protection, pump connector unit with rubber diaphram & bend, vertical discharge pipe, guide pipe, stainless steel chain/rope, water ‐proof power cable and level controller complete in all respects for fixed installation. For U.G.TANK (1 Working + 1 Standby) Location ‐ PLANT ROOM, Discharge - 50LPM. Head - 15 m HP/Load 2.0 (Approx)

Excavating trenches of required width for pipes, cables etc. including excavation for sockets and dressing of sides, ramming of bottoms, depth upto 1.5m including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20cm in depth including consolidating each deposited layer by ramming, watering etc. and disposing of surplus excavated soil as directed, within a lead of 50m. All kinds of soil. Pipes, cables etc. exceeding 80mm dia but not exceeding 300mm dia.

Providing, laying and jointing glazed stoneware pipes class SP‐1 with stiff mixture of cement mortar in the proportion of 1:1 (1 cement : 1 fine sand) including testing of joints etc. complete : 150mm dia

Providing, laying and jointing glazed stoneware pipes class SP‐1 with stiff mixture of cement mortar in the proportion of 1:1 (1 cement : 1 fine sand) including testing of joints etc. complete : 200mm dia

Providing and laying cement concrete 1:5:10 (1 cement: 5 coarse sand : 10 graded stone aggregate 40mm nominal size) all round sw pipes including bed concrete as per standard design 150mm dia

Providing and laying cement concrete 1:5:10 (1 cement: 5 coarse sand : 10 graded stone aggregate 40mm nominal size) all round sw pipes including bed concrete as per standard design 200mm dia

Constructing brick masonry manhole in cement mortar 1:4 (1 cement :4 coarse sand) RCC top slab with 1:2:4 mix (1 cement :2 coarse sand :4 graded stone aggregate 20mm nominal size), foundation concrete 1:4:8 mix (1 cement :4 coarse sand :8 graded stone aggregate 40mm nominal size) inside plastering 12mm thick with cement mortar 1:3 (1 cement :3 coarse sand) finished with floating coat fo neat cement and making channels in cement concrete 1:2:4 (1 cement :2 coarse sand :4 graded stone aggregate 20mm nminal size) finished with a floating coat of neat cement complete as per standard design. Inside size 90x80cms and 45cms deep including CI cover with frame (light duty) 455x610mm internal diamensions total weight of cover and frame to be not less than 38 kg (weight of cover 23 kg and weight of frame 15kg). With FPS bricks of class designation 75 (i) For Sewer Line

Providing and fixing square mouth SW gully trap grade 'A' complete with CI grating brick masonry chamber with water tight CI cover with frame of 300x300mm size (inside) the weight of cover to be not less than 4.50 kg and frame to be not less than 2.70 kg as per standard design. 150x100mm size P type with FPS 1st Class bricks.

Providing & laying CPVC pressure pipes of 10Kg/Sq.cm pressure rating class V including fittings, tees, bends, clamps, coupling and adaptors supports, and jointing with solvent joint, testing and necessary earth work in excavation, backfilling, disposal of surplus earth with a lead up to 100m complete, compaction and consolidation Including sand bedding all around CPVC pipe & fittings and thrust blocks at bends as per standard design (For garden hydrants). 25 mm

Providing & laying CPVC pressure pipes of 10Kg/Sq.cm pressure rating class V including fittings, tees, bends, clamps, coupling and adaptors supports, and jointing with solvent joint, testing and necessary earth work in excavation, backfilling, disposal of surplus earth with a lead up to 100m complete, compaction and consolidation Including sand bedding all around CPVC pipe & fittings and thrust blocks at bends as per standard design (For garden hydrants). 32 mm

Providing & laying CPVC pressure pipes of 10Kg/Sq.cm pressure rating class V including fittings, tees, bends, clamps, coupling and adaptors supports, and jointing with solvent joint, testing and necessary earth work in excavation, backfilling, disposal of surplus earth with a lead up to 100m complete, compaction and consolidation Including sand bedding all around CPVC pipe & fittings and thrust blocks at bends as per standard design (For garden hydrants). 40 mm

Providing & laying CPVC pressure pipes of 10Kg/Sq.cm pressure rating class V including fittings, tees, bends, clamps, coupling and adaptors supports, and jointing with solvent joint, testing and necessary earth work in excavation, backfilling, disposal of surplus earth with a lead up to 100m complete, compaction and consolidation Including sand bedding all around CPVC pipe & fittings and thrust blocks at bends as per standard design (For garden hydrants). 50 mm

Providing & laying CPVC pressure pipes of 10Kg/Sq.cm pressure rating class V including fittings, tees, bends, clamps, coupling and adaptors supports, and jointing with solvent joint, testing and necessary earth work in excavation, backfilling, disposal of surplus earth with a lead up to 100m complete, compaction and consolidation Including sand bedding all around CPVC pipe & fittings and thrust blocks at bends as per standard design (For garden hydrants). 62.5 mm

Providing and fixing gunmetal gate valve with CI wheel of approved quality (screwed end). 25mm nominal bore

Providing and fixing gunmetal gate valve with CI wheel of approved quality (screwed end). 65mm nominal bore

Constructing brick masonry chamber 30x30x50cms inside with 1st class brick work in cement mortar 1:4 (1 cement : 4 fine sand) for stop cock with C.I. surface box 100x100x75mm (inside) with hinged cover fixed in cement concrete slab 1:2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size), i/c necessary excavation, foundation concrete 1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40mm nominal size) and inside plastering with cement mortar 1:3 (1 cement : 3 coarse sand) 12mm thick, finished with a floating coat of neat cement complete as per standard design: With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Constructing masonry Chamber 90x90x100 cm inside, in brick work in cement mortar 1:4 (1 cement : 4 coarse sand) for sluice valve,with C.I. surface box 100 mm top diameter, 160 mm bottom diameter and 180 mm deep (inside) with chained lid and RCC top slab 1:2:4mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size ), i/c necessary excavation, foundation concrete 1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40 mm nominalsize ) and inside plastering with cement mortar 1:3 (1 cement : 3 coarse sand) 12 mm thick, finished with a floating coat of neat cement complete as per standard design : With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Providing and fixing Horizontal multistage self priming centrifugal pumping set with prefilter, thermoplastic body S.S impeller connected to a TEFC induction motor with built-in thermal protection and automatic reset suitable for Single phase, 50 cycles A.C supply complete with motor -2900 rpm, 1 ph, 230 V, 3 HP, 50HZ, protection IP-54 and insulation class-F. with suction and delivery headers, with inbuilt strainer,Vibration Eliminators, NRVs and necessary valves complete (2 nos. pumps (one working and one standby). Capacity : 1 m3/hr Head : 12 m

Providing all material & constructing brick masonary recharge pit of 4.0m dia x 4.0 m depth (Eff. depth) with brick work in cement mortar 1:4 ( 1 cement : 4 coarse sand) with 100mm dia weep holes at side walls @ 500 mm vertically & horizontally center to center, 200 mm thick RCC top slab in cement concrete (1:2:4 ) along with periferial & two nos. of intermediate RCC beams of size 250 x 450mm R/ F of slab 12 mm tor steel at bottom and 10 mm at topwith a spacing of 125 mm c/c, 4 nos 16 mm tor steel bars at bottom & 2 nos. 12 mm tor steel bars at top for beams with 8 mm stirrups @ 150 mm c/c, 2 nos. heavy duty SFRC cover of 560 mm dia,poly propelene coated rungs @ 300 mm c/c embeded in CC ( 1 : 2 : 4 ) blocks of 200 x 200 x 200 mm, 150 mm thick PCC in 1: 4 : 8 below footing with 150 mm projection, internal & external plaster in CM 1 : 4, necessary excavation, backfilling & disposal of surplus earth upto a lead of 50m complete in all respect including drilling percolation Bore Hole of 300/250 mm dia upto 50 meter depth with reverse rotary method in all types of soil including costs for mobilisation of Rig, including development of bore with 300‐400 cfm compressor and making good the area after completion of work. Contractor shall arrange for all

Providing and constructing brick masonry desilting chamber of size 200x150xupto300 cms effective depth inside with 75 class designation brick work 345mm/230mm thick in cement mortar 1:4 (1cement:4 coarse sand) with weep holes all around , SFRC cover heavy duty 560mm dia and 150 mm thick R.C.C. top slab 1:2:4 mix(1 Cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size) including necessary excavation, back filling, disposal of surplus earth as directed, foundation concrete 1:5:10 mix (1 cement : 5 fine sand : 10 graded stone aggregate 40mm nominal size) below masonry walls with 150mm projection at either side including necessary baffle wall inside(as per std. drawing) , excavation,back filling and disposal of surplus earth upto a lead of 200 mtr., poly propelene coated rungs @ 300 mm c/c.