Constrution of Muni ki reti Pumping Water Supply Scheme including all Civil and E and M Works in Block Narendra Nagar of District Tehri under Amrut Programme

Amount

PART(A) - CIVIL WORKS:- Excavation

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge. Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Excavation in soil mixed with single bouldres etc. requireing the use of specials T&P, if any, for pipe line trenches including lift up to 1.5M and lead up to 30M with back filling, watering, ramming of excavated earth in the trenches.

Excavation in decomposed, weathered or soft rock by using special T&P in pipe line trenches lead up to 30M and lift up to 1.5M required for proper completion of work.

Excavation in Medium Rock by chiseling or by using special T&P in pipe line trenches lead up to 30 M and lift up to 1.5 M required for proper completion of work.

Excavation in hard rock by chiseling or by using special T&P in pipe line trenches lead up to 30 M and lift up to 1.5 M required for proper completion of work.

RISING MAIN

Providing of all materials, Carting from site store to site of work, Lowering into trenches with true to alignment, Laying of MS ERW Pipes grade Yst 210, Jointing by electric welding process with proper grade of eletrodes suitable for jointing of water supply pipe lines (Ador, L&T or equivalent electrodes) by cutting of pipes and making required bends by welding, completion of work with testing of pipe line etc complete.

200-mm MSERW Yst (210)5.6mm Thick pipe for Zone-I

250-mm MSERW Yst (210) 4.8mm Thick pipe for Zone-II

CLEAR WATER RESERVOIR

Supply of all materials, labour, T&P etc and construction of R.C.C. CWR of following capacities ( in kiloliters ) with M.S. ladder outside the tank and alluminium ladder inside of the tank, M.S. M.H. cover with locking arrangement, lightning conductor as per electricity rules, water level indicator,supply and fixiing of outlet, inlet, over flow and wash out pipes with necessary sluice valves, pipe pieces (including cost of materials) flooring 0.60 M wide apron, painting on tank body vertical pipes, ladder, M.S. M.H. cover, ventilator column etc. complete with approved water proofing (apex) / enamal paint, testing, filling water for testing purpose etc. including supply of vertical pipes and specials, assuming bearing capacity as 8MT/M2

DISTRIBUTION MAIN

Providing of all materials, carting from site store to site of work, lowering into trenches with true to alignment. Laying & jointing of full length S&S Centerifugally Cast (Spun) Ductile Iron pipes Confirming to IS:8329/2000 including supply of 'EPDM' rubber gaskets confirming to IS: 5382-1985 with testing of pipe line complete.

125 MM dia K-7

150 MM dia K-7

200 MM dia K-7

250 MM dia K-7

Providing of all materials, carting from site store to site of work,laying and jointing of G.I. pipes confirming to IS: 1239 (PART-1) including supply of all jointing, materials like specials, while lead, hemp and oil etc. in trenches with is cutting, therading and testing of pipe line etc. complete.

15 mm dia Medium Duty (Class 'B') for HH connection

20 mm dia Medium Duty (Class 'B')

25 mm dia Medium Duty (Class 'B')

32 mm dia Medium Duty (Class 'B')

40 mm dia Medium Duty (Class 'B')

50 mm dia Medium Duty (Class 'B')

65 mm dia Medium Duty (Class 'B')

80 mm dia Medium Duty (Class 'B')

100 mm dia Medium Duty (Class 'B')

Supply of P/F C.I. D/F Non Return Valves in position including all material, labour, T&P with cartage etc complete. PN-16

200-mm dia

250-mm dia

Providing & Fixing D.I. D/F Sluice Valves Confirming to IS: 14846-2000 in position including all material, labour, T&P with cartage etc complete PN-16

200-mm dia

250-mm dia

P/F of C.I. D/F Sluice Valves confirming to IS 14846-2000 in position etc. complete PN-16

100 mm nominal bore

150 mm nominal bore

200 mm nominal bore

250 mm nominal bore

P/F of C.I Air Valve (Screwed) in position including all material, labour, T&P etc complete.

15-mm nominal bore

20-mm nominal bore

25-mm nominal bore

P/F of C.I Air Valve Double Acting in position including all material, labour, T&P etc complete.

50-mm nominal bore

65-mm nominal bore

80-mm nominal bore

Providing & fixing Brass G.M. Valve / Wheel Valve in position including alll material, labour, T&P etc. complete.

20 mm nominal bore

25 mm nominal bore

32 mm nominal bore

40 mm nominal bore

50 mm nominal bore

65 mm nominal bore

80 mm nominal bore

Providing & fixing of following size of Sluice Valves in position including alll material, labour, T&P etc. complete.

200mm dia. Cast steel Sluice Valve, W.P. 30kg/Cm2

250mm dia. Cast steel Sluice Valve, W.P. 30kg/Cm2

Providing & fixing of following size of Reflux Valves in position including alll material, labour, T&P etc. complete.

200mm dia. Cast steel Sluice Valve, W.P. 30kg/Cm2

250mm dia. Cast steel Sluice Valve, W.P. 30kg/Cm2

Painting Steel work with Deluxe Multi Surface Paint to give sq.m an even shade. Two or more coat applied @ 0.90 ltr/ 10 sqm over an under coat of primer applied @ 0.80 ltr/ 10 sqm of approved brand and manufacture

Constructing masonry Chamber 120x120x100 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 1:2:4 mix (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 nominal size) 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

Construction masonary chamber 60x45x50 cm, inside with 75 class designation brick work in cement mortar 1:4 (1 Cement : 4 Coarse Sand) with locking arrangement and RCC top slab 1:2:4 mix (1 Cement : 2 Coarse Sand 4 graded stone aggregate 20 mm nominal size) necesssary excavation foundation concrete 1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40 mm nominal size) 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 FPS Bricks.

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 derived from natural sources)for supply of anchor hook of (3 Nos) 16 mm dia. & 1.00 mtr. long tor steel, including supply of all material, labour, T & P etc. required for proper completion of the work for Anchor/Thrust Blocks of required size as per site requirement or as per satisfaction & approval of Engineer in Charge

M.S. Iron work in anchor block/Thrust Block,including supply,cartage,fixing,cutting,bending etc completeSteel reinforcement for R.C.C. work

Centering and shuttering including strutting, propping etc. and removal of form work for Columns, pillars, piers, abutments, posts and struts.

Protection work -Details Construction of protection works including necessary Earth Work for Site Development, Tube Wells , Clear Water Reservoir, Staff Quarter, etc. as per site conditions wherever necessary as follows :-

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 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources).

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

Providing and laying cement concrete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets etc upto floor five level, excluding the cost of centering, shuttering and finishing with 1:2:4 (1 Cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources).

Reinstatement of Road

Providing and laying of 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 coarse sand (zone - III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)

Providing and laying of position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level 1:2:4 ( 1 cement : 2 coarse sand (zone - III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

WATER METER

Supplying and fixing of following size of water meter including carting the same upto site of work and fixing the same in water supply lines including cost of valves, specials, labour and T&P complete in all respect. Water meters confirming to IS: 779-1994 P/F AMR water meter Class B multijet as per IS 779-1994 or ISO 4064-2005 CE mark IP68 along with (i)- LORA based AMR module of 5 Km. range and with frequency band 865 MHz maximum power upto 20.5 DBM. (ii)- Non rechargable Lithium Ion battery with 5 year Battery life (Considering 1 reading / day)

Supplying and fixing of following size of water meter including carting the same upto site of work and fixing the same in water supply lines including cost of valves, specials, labour and T&P complete in all respect.P/F AMR compatiable Class-B water meter as pern 779- 1994 or ISO 4064-2005, inferential type multijet, magnetically coupled having dry dial brass bronze body, copper cane / stainless steel register with 5 mm thick glass dialer with connecting pieces etc. complete.

Woltman Bulk water meter

80 mm dia

65 mm dia

100 mm dia

150 mm dia

200 mm dia

PUMP HOUSE (5.0 M X 7.00 M):- Construction of Pump House of size 5.0 X 7.0 m including supply of all materials, labour, T&P etc. complete with cartage of materials as per satisfaction & approval of Engineer in Charge

STAFF QUARTER:- Design, drawing, testing bearing capacity of soil & construction of Staff Quarter as follows made up of Brick masonry with R.C.C. flat roof including plumbing,electric fitting,sanitary works and supply of all materials, labour, T&P etc. complete with cartage of materials as per satisfaction & approval of Engineer in Charge for pump operators and Chaukidar as per type design and drawing.

APPROACH ROAD, BOUNDRY WALL AND OTHER MISCELLANEOUS WORKS

Construction of Boundary Wall made up of Brick masonry 1.5 m height in Ist Class Brick Masonary with 1:6 cement sand mortar as per approved design & drawing at T/W-I,II,III,Staff Quarter and Top CWR'S campus including supply of all materials, labour, T&P etc. complete with cartage of materials as per satisfaction & approval of Engineer in Charge

Supply and fixing of 3.6 m wide Gate with Pillars including all material, labour, T&P etc complete.

PART(B) - E&M WORKS:-

Transportation of Rig Machine, Air compressor O.P unit camp equipages, connected T&P & necessary material required for drilling up to site of work, including loading, unloading etc. complete.

Errection and Leveling of Rig Machine and barricading at site of work

Dismantling of Rig Machine & Clearance of site after satisfactory completion of work.

Drilling of borehole from GL to 70 mtr. BGL

Preparing & Lowering of tubewell assembly starting from G.L to the required depth including cutting, welding as required at site complete with all T&P required .

Supply & Lowering of 300 mm dia MS ERW fincut 7.9 mm thick Plain pipe

Supply & Lowering of 300 mm dia MS ERW fincut 7.9 mm thick Slotted pipe

Supply & fixing of 300 mm dia, 8 mm thick tubewell cap.

Supply & fixing of 300 mm dia M.S.D.I housing clamp and Girder Set.

Supply & fixing of 300 mm dia Bail plug.

Supply & Shrouding of Pea gravel in between bore & tubewell assembly to the entire depth of tubewell.

Development of tubewell by 350 PSI/1100 CFM Air compressor.

Development of tubewell by the suitable capacity O.P unit including supply & installation of pumping plant.

Geohydrological survey of site.

Chemical & bacteriological testing of water sample

Tubewell works Zone 2

Transportation of Rig Machine, Air compressor O.P unit camp equipages, connected T&P & necessary material required for drilling up to site of work, including loading, unloading etc. complete.

Errection and Leveling of Rig Machine and barricading at site of work

Dismantling of Rig Machine & Clearance of site after satisfactory completion of work.

Drilling of borehole from GL to 70 mtr. BGL

Preparing & Lowering of tubewell assembly starting from G.L to the required depth including cutting, welding as required at site complete with all T&P required .

Supply & Lowering of 300 mm dia MS ERW fincut 7.9 mm thick Plain pipe

Supply & Lowering of 300 mm dia MS ERW fincut 7.9 mm thick Slotted pipe

Supply & fixing of 300 mm dia, 8 mm thick tubewell cap.

Supply & fixing of 300 mm dia M.S.D.I housing clamp and Girder Set.

Supply & fixing of 300 mm dia Bail plug.

Supply & Shrouding of Pea gravel in between bore & tubewell assembly to the entire depth of tubewell.

Development of tubewell by 350 PSI/1100 CFM Air compressor.

Development of tubewell by the suitable capacity O.P unit including supply & installation of pumping plant.

Geohydrological survey of site.

Chemical & bacteriological testing of water sample

Pumping Plant Zone-1

SITC of Pumping plant as following :-

Submersible pump-set :-

Submersible pump-set of 1250 lpm cold and clear water against a total head of 85 mt with motor of 45 hp suitable to operate on 415±10% Volts, 3 Phase, 50 C/S A.C. Supply complete.(one no.as spare)

Panel Cum starter :-

P.W. & Earthing Materials -

Supply of 16 Sq. mm PVC insulated 3- core submersible cable.

MCCB 125 Amp with enclosure box

Supply of jointing material such as lugs, tapes etc.

Earthing with GI earth plate 600 mm x 600 mm x 6 mm including accessories, and providing masonry enclosure with providing and fixing 25 mm x 5 mm GI strip on surface or in recess for connections with charcoal, salt as required.

Main Piping and Valves -

Supply of 100 mm dia. MS column pipe assembly main piping, valves & specials (as per sheet attached)

Supply of Gauges -

Supply of 100 mm dial pressure gauge with control cock and fittings of range 0-10 kg/cm2 - 1 No.

Supply of following tools required for maintenance of pumping plants.

DE spanner set - 1 Set

Ring spanner set - 1 Set

Screw drivers - 2 Nos.

Pliers - 1 No.

Hammer - 1 No.

Pipe wrench 14" - 1 No.

Screw wrench - 1 No.

Chain wrench 80 mm dia - 2 Nos.

Supply of chain pulley block of 3 tonne capacity 4.5 mtrs. lift complete with travelling trolley.

Supply of rubber resistance sheet of size 1 m × 2 m × 0.025 m.

Supply of suitable capacity chlorinator dozer pump

Acessories of above pump set as following

Injector and NRV with PVC pipes etc.

200 Ltr.Capacity PVC tank.

Starter cum panel

Single phase automatic stabilizer

Chlorine testing kit

Supply of Sodium hypo-chloride (Naocl) solution.

Testing of pumping plants against guaranteed figures of Schedule 'E'

At Site

Painting of entire installation with 2 coats of super enamel paint as per direction of Engineer-In-Charge of works.

SITC of 3 phase rolling contact Servo voltage Stabliser indoor type (voltage range 280-460 V) 80 KVA

Supply & Laying of cable 50 sq. mm Al. conductor 3.5 core armoured cable.

Earthing of Servo voltage stablizer with GI earth plate 600 mm x 600 mm x 6 mm including accessories, and providing masonry enclosure with providing and fixing 25 mm x 5 mm GI strip on surface or in recess for connections with charcoal, salt as required.

Automation of Pumping plant

SITC of following-

Intelligent GSM/GPRS based Remote Terminal Units integrated with 7” HMI to store and transmit data on GSM/GPRS backbone.

GSM/GPRS based wireless Communication system for iRTU/PLC capable to transfer data from remote sites to MCS/LMS.

Intelligent Energy meter

Isolation Transformer (440V step down 220V for protection of site automation hardware)

Auto phase reversal unit for auto phase correction. (upto 40-100 hp)

Pressure transmitter

Electronic flow meter up to 150 mm size

Valve actuators (150 mm size)

Actuator panels.

Hard wired timer circuit for actuators

Signal cabling between RTU's and field instruments 2 pair ×1.5 PVC coated flexible screens cable.

Control cable between RTU & field instruments

4 C x 1.5 sq mm PVC Coated flexible unscreened cable.

10 C x 1.5 sq mm PVC Coated flexible unscreened cable.

Power cable for 3 ph actuators 4 c x 2.5 sq mm. cu power cable.

Conduit Pipe 1" (PVC)

Conduit Pipe 1.5" (PVC)

Accessories like AC relays,DC flexible & pipe,lugs etc.

Customization of software & Integration with existing SCADA Station

Erection, Commissioning & Customization of i- RTU/ PLC & software.

Erection,Testing. commissioning & Integration with SCADA Station.

Flow Meter with clamps & complete accessories.

Actuators

Pressure sensor

internal and external electrification of pump house.

Wiring for light point, fan point etc. with 1.5 sq mm FR PVC insulated copper conductor single core cable in surface PVC conduit with piano type switch, phenolic laminated sheet, suitable size GI box, with earth wire of 1.5 sq mm FR PVC insulated copper conductor single core cable etc as required.

Wiring for circuit/submain alongwith earth wire with the following size of FR PVC insulated copper conductor single core cable in surface PVC conduit as required.

2x2.5 sq. mm + 1x2.5 sq. mm earth wire

2x4 sq. mm + 1x4 sq. mm earth wire

Supply and fixing of metal box of 180 mmx100mmx160 mm deep on surface with suitable size phenolic laminated sheet cover in front including providing and fixing 6 pin 5/6 amp and 15x16 amp socket outlet and 15/16 amp piano type switch, connections, painting etc as required.

Supply and fixing of following way S.P.N. sheet steel, MCB DB, 240 V on surface complete with copper bus bar, neutral bus bar, earth bar, inter connections including earthing etc as required. (But without MCB/ RCCB/Isolator)

6 Way double door

Supply and fixing of 5 A to 32 A, 240 V, 10 KA, C serious MCB suitable for inductive load of following pole in the existing MCB DB complete with connection, testing etc as required.

Supply and fixing of double pole, 240 V, isolator in the existing MCB DB complete with connection, testing etc as required.

Supply and fixing of 20 W LED tubelight complete in all respect (Bajaj / Philips / Equivalent make)

Supply in fixing of LED external lighting luminaires with mounting bracket etc. complete.

Trial & Testing of Pumping plant with automation for a period of 01 months including cost of all consumables excluding electricity

Pumping Plant Zone-2

SITC of Pumping plant as following :-

Submersible pump-set :-

Submersible pump-set of 1050 lpm cold and clear water against a total head of 85 mt with motor of 40 hp suitable to operate on 415±10% Volts, 3 Phase, 50 C/S A.C. Supply complete.(one no.as spare)

Panel Cum starter :-

P.W. & Earthing Materials -

Supply of 16 Sq. mm PVC insulated 3- core submersible cable.

MCCB 125 Amp with enclosure box

Supply of jointing material such as lugs, tapes etc.

Earthing with GI earth plate 600 mm x 600 mm x 6 mm including accessories, and providing masonry enclosure with providing and fixing 25 mm x 5 mm GI strip on surface or in recess for connections with charcoal, salt as required.

Main Piping and Valves -

Supply of 80 mm dia. MS column pipe assembly main piping, valves & specials (as per sheet attached)

Supply of Gauges -

Supply of 100 mm dial pressure gauge with control cock and fittings of range 0-10 kg/cm2 - 1 No.

Supply of following tools required for maintenance of pumping plants.

DE spanner set - 1 Set

Ring spanner set - 1 Set

Screw drivers - 2 Nos.

Pliers - 1 No.

Hammer - 1 No.

Pipe wrench 14" - 1 No.

Screw wrench - 1 No.

Chain wrench 150 mm dia - 2 Nos.

Supply of chain pulley block of 2 tonne capacity 4.5 mtrs. lift complete with travelling trolley.

Supply of rubber resistance sheet of size 1 m × 2 m × 0.025 m.

Supply of suitable capacity chlorinator dozer pump

Acessories of above pump set as following

Injector and NRV with PVC pipes etc.

200 Ltr.Capacity PVC tank.

Starter cum panel

Single phase automatic stabilizer

Chlorine testing kit

Supply of Sodium hypo-chloride (Naocl) solution.

Testing of pumping plants against guaranteed figures of Schedule 'E'

At Site

Painting of entire installation with 2 coats of super enamel paint as per direction of Engineer-In-Charge of works.

SITC of 3 phase rolling contact Servo voltage Stabliser indoor type (voltage range 280-460 V) 80 KVA

Supply & Laying of cable 50 sq. mm Al. conductor 3.5 core armoured cable.

Earthing of Servo voltage stablizer with GI earth plate 600 mm x 600 mm x 6 mm including accessories, and providing masonry enclosure with providing and fixing 25 mm x 5 mm GI strip on surface or in recess for connections with charcoal, salt as required.

Automation of Pumping plant

SITC of following-

Intelligent GSM/GPRS based Remote Terminal Units integrated with 7” HMI to store and transmit data on GSM/GPRS backbone.

GSM/GPRS based wireless Communication system for iRTU/PLC capable to transfer data from remote sites to MCS/LMS.

Intelligent Energy meter

Isolation Transformer (440V step down 220V for protection of site automation hardware)

Auto phase reversal unit for auto phase correction. (upto 40 hp)

Pressure transmitter

Electronic flow meter up to 100 mm size

Valve actuators (100 mm size)

Actuator panels.

Hard wired timer circuit for actuators

Signal cabling between RTU's and field instruments 2 pair ×1.5 PVC coated flexible screens cable.

Control cable between RTU & field instruments

4 C x 1.5 sq mm PVC Coated flexible unscreened cable.

10 C x 1.5 sq mm PVC Coated flexible unscreened cable.

Power cable for 3 ph actuators 4 c x 2.5 sq mm. cu power cable.

Conduit Pipe 1" (PVC)

Conduit Pipe 1.5" (PVC)

Accessories like AC relays,DC flexible & pipe,lugs etc.

Customization of software & Integration with existing SCADA Station

Erection, Commissioning & Customization of i- RTU/ PLC & software.

Erection,Testing. commissioning & Integration with SCADA Station.

Flow Meter with clamps & complete accessories.

Actuators

Pressure sensor

Internal and external electrification of pump house.

Wiring for light point, fan point etc. with 1.5 sq mm FR PVC insulated copper conductor single core cable in surface PVC conduit with piano type switch, phenolic laminated sheet, suitable size GI box, with earth wire of 1.5 sq mm FR PVC insulated copper conductor single core cable etc as required.

Wiring for circuit/submain alongwith earth wire with the following size of FR PVC insulated copper conductor single core cable in surface PVC conduit as required.

2x2.5 sq. mm + 1x2.5 sq. mm earth wire

2x4 sq. mm + 1x4 sq. mm earth wire

Supply and fixing of metal box of 180 mmx100mmx160 mm deep on surface with suitable size phenolic laminated sheet cover in front including providing and fixing 6 pin 5/6 amp and 15x16 amp socket outlet and 15/16 amp piano type switch, connections, painting etc as required.

Supply and fixing of following way S.P.N. sheet steel, MCB DB, 240 V on surface complete with copper bus bar, neutral bus bar, earth bar, inter connections including earthing etc as required. (But without MCB/ RCCB/Isolator)

6 Way double door

Supply and fixing of 5 A to 32 A, 240 V, 10 KA, C serious MCB suitable for inductive load of following pole in the existing MCB DB complete with connection, testing etc as required.

Supply and fixing of double pole, 240 V, isolator in the existing MCB DB complete with connection, testing etc as required.

Supply and fixing of 20 W LED tubelight complete in all respect (Bajaj / Philips / Equivalent make)

Supply in fixing of LED external lighting luminaires with mounting bracket etc. complete.

Trial & Testing of Pumping plant with automation for a period of 01 months including cost of all consumables excluding electricity

PART (C) - CIVIL & E/M WORKS:-

Operation and maintenance of the scheme after successful construction, testing commissioning of the scheme and opretion and maintence of the scheme for further period of 05 years.