SPECIAL REPAIR/REPLACEMENT OF BER CENTRAL AC PLANT OF AVIONICS LAB AND SPECIAL REPAIR / REPLACEMENT OF BER CHILLER PLANT AT P-77 (ATEC BLDG) IN TECH AREA AT AF STN GWALIOR

Amount

Taking down existing unserviceable package unit capacity 3 x 5.5 TR including all components like package unit, cooling tower, motor, LT Panel, cable, foundation of all equipment, supply / return air duct, piple line network, water storage tank, diffuser etc and deposited into AGE E/M Store yard complete including removing of false ceiling for removal of Air duct and re-fixing properly after installation of duct and diffuser. Note : Any damaged false ceiling shall be replaced free of cost to match the existing surface of false ceiling.

Design, supply, installation, testing and commissioning of water cooled Floor mounted packaged Air Conditioner capacity not less than 11 TR (1,32000 BTU/Hr) air flow not less than 4400 CFM, copper cooling coil with aluminium slit fins fitted, Hermatically sealed Scroll compressor working of R-410A refrigerant, water cooled shell and tube type condenser, thermostatic expansion valve, Direct expansion evaporator coil, all controls and Microprocessor based controllers with LCD Display and all other accessories required for efficient working of package unit including PCC foundation work as per OEM instruction, condensate water drain pipe complete all as specified and directed by Engr-in-charge. Make :- Bluestar Model No DPW 1322 R3 or equivalent make of Voltas / Daikin / Carrier

GSS metal ducting with 24 gauge24 Gauge

GSS metal ducting with 22 gauge24 Gauge

Supply, fabrication, installation and testing the flexible connections constructed of fire resistant double layer resin sleeve and Jib opening as required all as per the OEM Instruction complete all as specified and as directed.

Supply, installation, testing and commissioning of high performance air foil class 1A leakage rated GI volume control damper having galvanised steel hat channel frame reinforced with corner braces, galvanised steel airfoil shaped blades (double skin construction) of 18 gauge thicknes, neoprene blade edge seals, flexible metal compressible jamb seals, stainless steel sleeve, linkage concealed in frame, etc. tested as per AMCA Standard 500-D-98 complete all as specified and directed by Engineer-in-charge.

Material & Labour for square / rectangular / round neck of size not less than 450 mm X 450 mm rectangular neck 4-way discharge ceiling return diffuser having neck velocity ≤ 600 ft/min, throw ≥ 19' @ 150 ft/min velocity NC ≤ 26 for air flow ≥ 1057 ft3/min ceiling return diffuser for fixed, horizontal discharge pattern consisting of an outer frame assembly with a square / rectangular inlet being an integral part thereoff, an inner core assembly consisting of fixed deflection louvers, throw reducing vanes, anodic acrylic paint finish, etc. and tested as per ANSI / ASHRAE standard 170-1991 complete all as specified and directed by the Engineer-in-charge.

Material & Labour for CBRI certified 16-gauge GI fire damper ( Control panel actuator, including electrical spring type actuator, remote indication of the fire damper position.) , at least of 120 minutes fire-rating, spring activated on melting of fusible link having melting point 67.13° C complete with smoke detector / thermistor, fusible link etc. and actuator as required for operation, located in the SA / RA ducts, at all fire rated cross overs (shafts, walls, etc.) along with control panel (located in such a way that the reset may easily be done), interlocked with the building management system for the fire detection or HVAC to trip / close in the event of fire / smoke in the respective zone and tested as per UL-555 complete all as specified and directed by the engineer-in-charge. The fire dampers shall meet the following criteriaon:- [i] Bare fire dampers with 400 mm sleeve [ii] Control panel actuator, including electrical spring type actuator, remote indication of the fire damper position. [iii] Interconnection wire for the fire detection & alarm system with the LCD fire damper controller. [iv] Sealing any openings around the sleeve of the fire dampers with approved fire sealant as per the specification & recommandations of the manufacturer.

Supply, installation, test and commissioning of 10mm thick accoustic insulation inside the duct with engineered nitrile rubber open cell foam with density 140-180 kg / cum and class - I fire performance and with antimicrobial as per ASTM E 21 using manufacturer's recommended rubber based adhesive in a solvents complete all as specified and directed.

Supply install test and commissioning of thermal insulation of duct with 13 mm thick closed cell chemically cross linked fire retardant polyethylene foam insulation of density 30 Kg/cum. The thermal conductivity of the material should not exceed 0.035 W/Mk at an average temp of 40 deg C,covered with aluminium faced foil complete with application with rubber based adhesive Pidilite SR 998 and self adhesive Aluminium tape on both longitudinal & transverse joints simultaneously and externally wrapped with wrapped with 3M Fire Barrier Duct Wrap 615+ certified to ISO 6944 (air duct test standard) all as specified.

Material & Labour for underdeck insulation for RCC roof with bonded fibre glass wool of density 48 Kg/Cum, 50 mm thick, suitably factory laminated with aluminium foil having flange on one side, backed up by scrim and kraft paper, comprising of the following (insulating material shall conform to BS -476, Part 4,5, 6 & 7):-“(a) S & F 50 x 50 mm or 75 mm x 75 mm slotted angles 50 mm wide, fixed to the ceiling by means of rawl plug 600 mm centre to centre.“(b) Supply and draw GI tie wire 22 Gauge from vertical slots, for holding the insulating material in position with and including GI washer.“(c) S & F aluminium foil, adhesive tape 50 mm for sealing of aluminium foil flanges.“(d) Providing additional support to the insulation with and including chicken wire mesh of size 12.5 mm x 0.51 mm (24 SWG) hexagonal construction, stretched firmly over the insulation and fixed". (for plant room Ceiling) complete all as specified and as directed.

Supply & Fixing for 25 mm black flexible closed-cell elastomeric thermal insulation made of elastomeric foam based on synthetic rubber (NBR / PVC), tested for maximum service temperature 100 ºC as per ASTM C-534 & minimum service temperature -50 ºC as per ASTM C-534, thermal conductivity λ ≤ 0.037 W/mK at mean temperature θm = 24 ºC as per ASTM C-518 / C177, ASTM C-335, water absorption by volume ≤ 0.2% as per ASTM C-209 / C-1763, flame spread index (FSI) & smoke development index (SDI) 25/50 as per ASTM E-84, flammability HB, V-0 as per UL-94, fungi resistance as per ASTM G-21/C-1338, mould growth resistance as per ASTM E-2180-18 / UL-181 and ozone resistance as per ASTM D 1149-18 laminated with 12 micron aluminium foil facing with reinforced glass scrim, adhesives and other necessary accessories complete all as specified and directed by the engineer-in-charge. (for plant room walls)

Supply & Fixing for wall mounted digital temperature cum % RH controller complete with large LCD, English display having operating voltage 240±10% V AC, 50 Hz frequency, ≤ 8 VA power consumption, 0.5 ºC temperature display resolution, 0.1% relative humidity display resolution, IP20 protection, etc. including battery and control wiring in PVC conduit from thermostat / humidistat in return air duct to AHU Room complete as specified and directed by engineer-in-charge.

Supply & Fixing for Indoor type wall mounted digital temperature cum %RH meter (Digital Thermo Hygrometer) complete with large LCD, English display having operating with 12/24H Max/Min temperature and humidity memory function range -50°C to 70°C Temperature accuracy 0.5 ºC and Humidity range 10% to 99% RH Humidity accuracy 5% RH Humidity resolution 1% RH Power source 1*AAA (1.5V) battery complete as specified and directed by the engineer-in-charge.

Supply, fixing, testing and commissioning of condenser water pipes of MS class ‘C’ of 65mm bore and material along with necessary clamps, vibration isolators and fittings such as bends, tees etc but excluding strainer and gauges etc adequately supported on rigid supports/buried in ground including excavation & return filling etc and painting with approved colour as per latest colour code / IS and marking of flow direction of water complete all as specified and directed.

Supply, installation, testing and commissioning of wafer type PN 1.6 rated short pattern integral moulded design CI butterfly valve 65mm dia having Gr. FG-200 CI body conforming to IS 210: 2009, seat having EPDM rubber lining, CF 8 stainless steel disc, AISI- 410 stainless steel stem, 2.4 MPa body test pressure & 1.6 MPa seat test pressure and standard flange end conforming to BS 10 Table D/E & ANSI B 16.1 CI- 125, duly insulated complete all as specified and directed by the engineer-in-charge.

Supply, installation, testing and commissioning of cast steel bolted cover Y-type strainer of 65 mm dia with CCS body conforming to ASTM A- 216 Gr. WCB, AISI 304 screen with 1.2 mm diameter perforation, 40 kg/cm2 body test pressure & 20 kg/cm2 maximum working pressure and standard flange end conforming to BS 10 Table F / Class-150, duly insulated complete all as specified and directed.

Supply and fix CI non return valves PN-10 of 65 mm dia complete all as specified and directed. .

Supply and fix CI Pot Strainer 65 mm dia complete all as specified and directed.

Supply and fixing in position water flow switches as per OEM design and specifications for the water circuit complete with fitttings all as specified and directed.

Supply & Fixing for 4" bourdon tube pressure gauge conforming to EN 837-1, having copper alloy process connection & pressure element, plastic black pointer & case, plastic crystal-clear window, snap-fitted in case, accuracy class 2.5, scale range 0- 25 bar with necessary accessories all complete as specified and directed by the engineer-in-charge.

Supply & Fixing for 6" dual scale (°F / °C), lower mount (radial), bimetal thermometer having 0.5 NPT process connection, Grade A accuracy class as per ASME B-40.200, stem diameter 6.35 mm, laminated safety glass window, stainless steel 304 case, steam, process connection & joint, aluminium dial & pointer, IP67 protection, scale range 0- 60 °C with necessary accessories all complete as specified and directed by the engineer-in-charge.

Supply, fixing, testing and commissioning in position Gun metal Gate/globe Valves 32 mm dia heavy duty, butterfly handle including fixing arrnagment in MS pipe by making suitable size hole complete all as specified and directed.

Material & Labour for PN 1.6 rated air vent valve having brass body, cover, adopter, disc assembly & cap, stainless steel strainer, plastic float and 20 mm screwed threaded ends suitable for maximum operating temperature 100 °C installed on all high points in the water piping system to automatically remove the trapped air with necessary accessories all complete as specified and directed by the engineer-in-charge.

Supply, Installation, testing and commissioning of FRP cooling tower of not less than 15 TR heat rejection capacity with FRP water basin PVC fillings with CTI manufacturer integral louvers and drift eliminators complete with hot water basin either fitted with spray nozzles or having self rotating sprinklers, statically & dynamically balanced axial flow type fan direct driven or driven through reduction gear box with TEFC induction motor, suction screen, make up quick filling arrangement, over flow and drain connections with necessary valves and suitable inspection ladder, access arrangement for cooling lower interior, installed on MS girders (MS-I sections) fixed in masonry foundations with cement concrete footing, second class brick work and cement mortor1:6; all accessories, basin fittings, fan, fan motor suitable for 415 Volt supporting structure, anti vibration mountings etc. complete and with following technical data. (a) Water flow/tower 60 USGPM (b) Ent. Water Temp. 97 °F (c) Basin water Temp. 90 ˚F Make :- MIHIR / POLO / PAHARPUR

Supply & Installation makeup water tank of minimum capacity 2000 Ltr capacity each, HDPE Construction complete in all respect with connection, over flow and drain. Make up connection with float valve, drain valve, incoming line valves and fittings as specified including civil works as required and directed.

Supply, installation, testing & commissioning of centrifugal pump sets factory assembled & tested for rated efficiency complete with TEFC motor mounted on common base frame, coupling guard, etc. for re-circulation of condensed water from cooling tower to condenser for the packaged air conditioning system ( CONDENSER WATER PUMPSET ). The pumps shall be suitable for operation on 415 ± 10% Volts, 50 Hz, 3 Phase AC power supply all as specified and directed by Engineer-in-charge. ( 01 NOS WORKING + 01 NOs STANDBY) The pump characteristic of centrifugal pump set shall be as follows: a. Water quantity min 60 US GPM b. Static Head 22 M c. Impeller Bronze (i) 1 No.- mono block type pump (ii) 1 No. - Suitable HP TEFC squirell cage EE4 induction motor with class 'F' insulation 2900 rpm synchronous speed, operating on 415+ 10% volts, 3 phase, 50 Hz A.C. supply. (iii) 2 Nos. -100 mm dia dial type pressure gauges. (iv) Lot- Mounting frame with Anti vibration pads. (v) Lot-PCC cement concrete foundation for the pump unit and suitable ladder for pump.

Mild Steel Structural work for supporting pump units with proper supports section as per requirement at site and painting with two coats of synthetic enamel paint over a coat of red oxide primer primer complete all as specified and as directed.

Supply and Installation of PVC drain piping 32 mm dia with 6 mm thick Closed cell foam insulation with all fittings and supports etc Drain pipe should be nearest to packaged aircondtioners complete all as specified and directed.

Supply, fixing, testing and commissioning factory fabricated cubicle type MV panel consisting of the 3 phase, 415 volt, 35 MVA rupturing capacity made of 2 mm thick CRCA sheet powder coated conforming to IP-54, including interconnection wiring, indicating lamps etc. The cubicle panel shall be free floor standing type, complete with interlocking arrangement & earth bus. The panel shall have compartmentalized arrangement to accommodate one feeder in each compartment. A vertical cable alley of suitable width shall be provided to serve one or two vertical feeder sections. Also the openings between the busbar chamber and the feeder section shall be shrouded with Bakelite/hylam sheet with minimum 3 mm thickness. All the hardware used in fabrication of panel shall be galvanized with zinc passiveness panel shall be includes the following accessories

S& F in ground/ in ducts/in pipes/on cable trays of following size PVC insulated aluminum conductor armoured cables of 1.1 KV grade confirming to IS complete with cable tray, clamps, saddles etc, including effecting proper connection to the equipment all as required and specified:- Notes:- (i) The cost includes cost of of suitable DWC pipes for cable protection at road crossings, cable trays, protective bricks, sand and excavation where necessary or as directed by EIC. (ii) All exposed cables in trenches/wall/ceiling/roof trusses shall be provided with silicon based fire resistance coating compatible for PVC cables. (iii) All terminations shall be made with proper lugs in the approved manner

3.5 Core x 95 Sq.mm (aluminum conductor)

3.5 Core x 25 Sq.mm (aluminum conductor)

4 Core x 10 Sq.mm (aluminum conductor)

4 Core x 1.5 Sq.mm (copper conductor) For Controls

Supply & fixing in possition the powder coated cable trunking of the following sizes for supporting 1100 Volts grade armoured/ unarmoured aluminium/ copper conductor cables, fabrication and perforated 1.6mm thick GI CRCA sheet with expansion coupler plates duly galvanised, corner, elbow etc, with bolts, washer and nuts, knock out holes for cable connections as per approved disign, including mounting arrangment of cable tray to wall / floor with suitable size angle iron/ flat iron / pipe support. The tray shall comply with the specification of NEC (National Electric Codes) and NEMA ( National Electric Manufacturers Association) the steel shall be as per IS: 226 and galcanising as per IS: 2629/BS 729/ASTM 123.

150 mm wide x 40mm wall height cable tray

100 mm wide x 40mm wall height cable tray

M & L earthing complete with Galvanized steel earth electrode 600 x 600 x 6 mm thick buried directly in ground (earth pit not less than 2.25 Mtr deep below normal ground level) with top edge of earth electrode not less then 1.5 Mtr below normal ground level connected to GI strip of size 32 x 6 mm as earth lead by means of bolts, check nuts and washers of galvanized iron or steel connected to earth test point including earth strip from earth electrode to test point , GI pipe 40mm dia light grade as protection pipe and 20mm dia GI pipe light grade for watering pipe of required length including charcoal dust, common salt, excavation and earth work earth pit with PCC 1:3:6 type CI (using 20 mm graded stone aggregate, precast RCC cover 40 mm thickness reinforced with 3 Nos TMT bars 8mm dia both ways, funnel with wire mesh, testing and rest as shown in electrical plate No-3 of SSR-I including complete all as specified and directed. Note: Earthing strip and protection pipe upto 7.5 meter length shall be deemed to be included in the quoted unit rate . Earthing strip beyond 7.5 meter shall be measured and paid separately. (Package unit (02 x 02), Main Control panel (02), Motor (02), CT Fan motor (02)

S & F GI earth strip 32 mm x 6 mm below ground, in 40 mm GI pipe wherever required and on surface or in recess for connections etc.Complete all as specified and as directed

Supply and fixing of heater bank assembly of capacity 18 KW (each in series of 2 KW x 3 x 3) including mounting arrangment in return air and control wiring with suitable size glass wool copper wire into steel conduit up to electric panel properly secured to on/off of each heater bank as required at site complete all as specified and directed by OEM/ EIC.

Notes :- (i) Contractor / bidder needs to check the desired inside conditions carefully and submitt the bid only after ascertaining the capacity of the AC plant required to achieve the inside condition. Design data attached as per Appendix 'A'. (ii) Contractor / bidder should submitt complete design for the package AC plant comprising of heat load calculations, working drawings of complete AC plant, supported with design / calculations of each components duly vetted by IIT / NITwithin one months of the date of commencment of work through GE for the approval of Accepting Officer before execution of work. (iii) Contractor / bidder will be responsible for performance guarantee of complete plant to achieve the inside conditions for 12 Hrs operations through out the year i.e, during Phase-II test (Summer, winter and mansoon test) with overall COP as per latest Indian standards. (iv) Design, supply, installation, testing and commissioning of package AC plant shall be undertaken through manufacturer/specialist firms. (v) Rates quoted by the contractor shall be complete finsihed work including cost of labour, material, scaffolding, finishing as required with tools, plants, cartage, lift, taxes, tollage, octroi, royalties etc. All works shall be executed as per drawings and instructions of site-in-charge and shall include the supply and installations at site of all the equipments, ancillary materials as specified and all such items what so-ever which may be required to fulfill the intent and purpose laid down in the drawings. All materials shall be as per ISI specification and with IS certification marked wherever applicable. The material shall be duly approved by site-in-charge before incorporation in the actual work.

(vi) Any left out material required for functioning of AC plant or directed by OEM/ Engr-in-charge shall be provided by the contractor / bidder free of cost to achieve design condition and overall performance of AC plant. (vii) The completion of the work shall be issued in phased manner. Provisional completion of the work shall be issued after physical execution of the work at site and succesfully testing of Phase-I test. (viii) The Phase -I completion of the work shall be issued after 12 hours Phase-I Test in presence of Engr-in-charge , GE and users Representative. (ix) The Phase -II ( summer / mansoon / winter ) Tests shall be carried out by The Rep of Accepting Officer, Engr-in-charge and User rep as per rules in vogue. (x) The Plant shall be operated by the contractor two shift i.e (0600 to 1400 and 1400 hrs to 2200 hrs excluding sunday/holdidays or as per users requirement and as directed by GE/ Engg-in-charge ) after phase-I test and till the completion of all phase-II tests ). Rates are inclusive in the installation cost of complete plant. (xi) The Defect liability period of the contract shall be start after the completion of phase-I tests of plant)

Design , Supply, installation, commissioning and testing of AHRI (Air conditining, Heating and Referigeration Institute) certified outdoor type Engery efficient 2 star rated Air cooled chiller unit capacity not less than 10 TR, comprising of twin Hermetic compressor, suitable for 415+ 10% Volts, 50 Hz, 3 phase power supply, microprocessor based control panel, suitable for R-410A Refrigerant, shell and tube insulated evaporator, insulated evaporator tank, chilled water piping system as per manufacturer guidelines from chiller to pump and evaporator make up water tank, connecting control cable from soft start panel to chiller syste, sensor, transducer, flow meter, thermoeter for chilled water in/out, supply/return chilled water valve, drain valve, purging valve, strainer, HP/LP cutout, complete all necessary protection devices as recommended by manfuacturer for functioning of chiller unit and suitable foundation as per manufacture recommendation for placing of chiller unit complete all as specified and directed to achieve the following design conditions :- (a) Chiller Nominal capacity : Not less than 10 TR (b) Chilled water engtering temperature : 54 deg F (c) Chilled water Leaving temperature : 44 deg F (e) Evaporator Fouling Factor : 0.0000180 M2. KW (f) Chilled water flow rate : 1.440 LPS (g) Refrigerant : R-410A (h) Minimum COP at AHRI @ 100% Load : Not less than 2.92

Notes (i) The rate shall be inclusive of Designing of Chiller plant. Contrtactor shall submit the detailed Design & complete working drawing of AC plant including heat load calculation, plant layout, electrical panel details dully vetted by IIT / NIT (Relevant department). Certificate of sound design shall be on official letter pad of IIT / NIT. Complete set of design of drawing shall be submitted for approval of Accepting Officer within 01 Months from date of commencement of work as per Work order No. 1 (ii) The completion of the work shall be issued in phased manner. Provisional completion of the work shall be issued After physical execution of the work at site complete in all respect phase I test as specified. A final completion of work will be issued after Phase-II test (Summer, mansoon and winter test). (iii) The Phase -II ( summer / mansoon / winter ) Tests shall be carried out in presence of Sr IEM HQ CE (AF) Prayagraj Zone / Rep of Accepting Officer. (vii) The Defect liability period of the contract shall be start as per condition 46 of IAFW 2249 General condition of contract (24 Months after the provisional completion of work under phase-I)

Materials and labour XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross- sectional area 70 sqmm 4 core including connection with proper thimble and gland complete all as specified and directed. Note : Excavation and earth work will be measured and paid separately under respective items

Materials and labour XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross- sectional area 35 sqmm 3.5 core including connection with proper thimble and gland complete all as specified and directed. Note : Excavation and earth work will be measured and paid separately under respective items

Materials and labour XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross- sectional area 10 sqmm 2 core including connection with proper thimble and gland complete all as specified and directed. Note : Excavation and earth work will be measured and paid separately under respective items

Supply and fix MS tank of 8 mm thick of capacity 500 Ltr with nitrile rubber insulation as per standard guidelines icluding aluminium cladding , bituminous paint , provision of sutiable size cover and outlet/ inlet valve complete all as specified and directed. Notes :- (a) PCC /Iron frame structure Staging for the evaporator tank as per manufacturer guidelines complete.

Supply, install, testing & commissioning of electric control panel indoor type suitable for Air Cooled chiller unit and motors , 3 Phase made out of CRCA sheet of 2.0 mm thick of suitable size CPRI approved powder coated with locking and fixing arrangement on wall and cable in/out arrangement below the panel including bus bar of suitable size as per load and control wiring as per manufacturer guidelines of follwing control/auxillary features. (a) MCCB Main Incomer 63 Amps, 4 pole, Microprocessor based, 100 %Icu=Ics - 03 Nos (01 Reserve) (b) MCB SPN 32 Amps - 04 Nos (c) RYB indicator - 01 Set (d) Toggle switches - 02 Nos (e) DOL Starter suitable for 3 HP Monoblock - 04 Nos (f) Pre control wiring with pvc insulated multistranded copper conductor wire as required.

Supply and fix Mono Block Pump Set three phase 415 Volts, of Capacity 3 HP, Suction : 80 mm, delivery : 65 mm, head : 18 mtr, Discharge : 7.5 LPS complete all as specified and directed.

Supply, laying, testing and commissioning of chilled water and hot water plumbing pipes MS ‘C’ CLASS as per IS: 1239, with necessary clamps, vibration isolators and fitting like valves, flanges, union etc. but excluding valves, strainers, gauges etc.) cut to required lengths and welded at joints and inclusive of accessories like elbows, tees, reducers, sockets etc. including insulating with 19 mm (for all pipes) and 13mm (for drain pipe) thick closed cell chemically cross linked fire retardant polyethylene foam insulation of density 30 Kg/cum. The thermal conductivity of the material should not exceed 0.035 W/Mk at an average temp of 40 deg C,covered with aluminium sheet cladding 24 gauge complete with application with rubber based adhesive Pidilite SR 998 y , all as specified and repairing damage to building etc. for 65mm and conforming to the specified specification,

Supply and fix GI Tubes, 'Medium' grade', galvanised of 25 mm bore, with all fitting; complete laid in trenches all as specified and directed.

Excavation in trenches not exceeding 1.5 metre wide and not exc 1.5 metre in depth for foundation of pole / stay, or cable trenches and getting out in soft/loose soil complete all as specified and as directed by the Engineer in charge.

Returning filling in incl spreading, leveling watering and well ramming in layers not exceeding 25 cm in soft loose soil complete all as specified and as directed by the Engineer in charge.

Removing excavated materials to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 metre above the starting point all as specified and as directed by the engineer –in- charge.

Supply and laying double walled corrugated (DWC) HDPE duct pipe of 65 mm Outer Dia alongwith suitable size connector conforming to IS, approved colour complete with fittings for cable protection all as specified and as directed by the engineer –in- charge..

SWASTIKA ENGINEER (BID ID -3498273)

PANWAR ELECTRICALS (BID ID -3498337)

Uma engineers (BID ID -3497647)

Radhe Krishn Engineering (BID ID -3504342)

Allied Agencies (BID ID -3504923)