Tender For Improvement Of Sludge Extraction Drain Valve Arrangements Attached With The Pulsator Type Clarifiers Under Module-1,Having Capacity Of 20 Mgd At Igwtp
Tender Value
9.94 Lakhs
Estimated cost
Bid Submission
09 Sep 2026
23 days left
EMD
20000
Bank guarantee accepted
Document Fee
Ref. Documents
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
24 Paraganas North → West Bengal
EMD Exemption
Not Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for Improvement Of Sludge Extraction Drain Valve Arrangements Attached With The Pulsator Type Clarifiers Under Module-1,Having Capacity Of 20 Mgd At Igwtp
Corrigendum
| Sr No | Corrigendum Date | Corrigendum | Type | New Submission Date |
|---|---|---|---|---|
| 1 | 11-Aug-2026 | Change OF Tender REF Number on BOQ | BOQ | 09-Sep-2026 |
BOQ
| Sl. No. | Item Description |
| 1 | PART-A |
| 2 | Dismantling all types of plain cement concrete works, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m In ground floor including roof (b) above 150 mm. thick |
| 3 | CHAPTER - III TAKING OUT PIPES AND SPECIALS Cast Iron / Ductile Iron Pipes and Specials M.S. Pipes and Specials Taking out sluice valve by unscrewing nuts and bolts carefully and stacking the same within a lead of 30M including bailing out water from the Sluicevalve chamber due to normal seepage. if any. all complete as per direction of the Engineer-in-Charge. (Dismantling of Sluice Value Chcmber, where necessary. shall be paid extra as per relevant items of Schedule of Rates) Diameter in mm 80-150 |
| 4 | CHAPTER - III TAKING OUT PIPES AND SPECIALS Cast Iron / Ductile Iron Pipes and Specials M.S. Pipes and Specials Taking out sluice valve by unscrewing nuts and bolts carefully and stacking the same within a lead of 30M including bailing out water from the Sluicevalve chamber due to normal seepage. if any. all complete as per direction of the Engineer-in-Charge. (Dismantling of Sluice Value Chcmber, where necessary. shall be paid extra as per relevant items of Schedule of Rates) Diameter in mm 200 |
| 5 | Ductile iron double flanged manually operated sluice valve generally conforming to IS : 14846, having body, door, dome, gland in graded ductile iron to IS 1865, four faces and spindle nut of gun metal to IS : 318, inside screw non- rising stainless steel AISI-410 spindle valves suitable formaximum working pressure of 10 kg/cm... and body tested 15 kg/cm..., flanges flat faced and drilled to IS: 1538 :1993. Valves tested by closed end method only. 350mm and above valves are complete with enclosed gear box with anti friction device.Diameter in mm 100 |
| 6 | Ductile iron double flanged manually operated sluice valve generally conforming to IS : 14846, having body, door, dome, gland in graded ductile iron to IS 1865, four faces and spindle nut of gun metal to IS : 318, inside screw non- rising stainless steel AISI-410 spindle valves suitable formaximum working pressure of 10 kg/cm... and body tested 15 kg/cm..., flanges flat faced and drilled to IS: 1538 :1993. Valves tested by closed end method only. 350mm and above valves are complete with enclosed gear box with anti friction device.Diameter in mm 200 |
| 7 | Supply of M.S. Flange (slipper type) as per IS-6392 TABLE 17 Thickness - 20mm -22mm NB Diameter in mm 100 |
| 8 | Supply of M.S. Flange (slipper type) as per IS-6392 TABLE 17 Thickness - 20mm -22mm NB Diameter in mm 200 |
| 9 | Supply of Flat Rubber Gasket of EPDM Quality with ISI Mark to IS: 5382/1985 Type-4 suitable for flange joint, drilled to IS: 1538 (Table ... VI). The gasket should have dual thickness 3/6mm with 6 mm thickness at the sealing cross section.100mm dia |
| 10 | Supply of Flat Rubber Gasket of EPDM Quality with ISI Mark to IS: 5382/1985 Type-4 suitable for flange joint, drilled to IS: 1538 (Table ... VI). The gasket should have dual thickness 3/6mm with 6 mm thickness at the sealing cross section.200mm dia |
| 11 | Supply of E.R.W.M.S. (Electrical Resistant Welded M.S.) black pipe of ISI Mark as per relevent IS Specification ( heavy quality ) having wall thickness not less than 5 mm. [N.B.: The rates for supply of TATA Make pipe will be arrived at by adding 20% of the corresponding rates ] Diameter in mm (Internal)100 |
| 12 | Supply of E.R.W.M.S. (Electrical Resistant Welded M.S.) black pipe of ISI mark as per relevent IS Specification ( heavy quality ) having wall thick-ness not less than 8 mm. [N.B.: The rates for supply of TATA Make pipe will be arrived at by adding 20% of the corresponding rates ] Diameter in mm (Internal) 200 |
| 13 | Supplying, fitting, fixing bolts with nuts, washer (i) 10 to 16 mm dia: (a) Length up to 75 mm (3rd Corrigenda & addenda dated 04.06.2018) |
| 14 | Supplying, fitting, fixing bolts with nuts, washer (ii) 20 to 25 mm dia bolt: (a) Length up to 75 mm dia: (3rd Corrigenda & addenda dated 04.06.2018) |
| 15 | Lowering, fitting and fixing of all types of valves in proper position and alignment using chain pully block or crane(for diameter above 250 mm) by providing temporary support,as required,gaskets,nuts& bolts etc.all cornplete as per specification and direction of the Engineer-in-Charge.[The rate Includes cost of flange joints]100mm dia. |
| 16 | Lowering, fitting and fixing of all types of valves in proper position and alignment using chain pully block or crane(for diameter above 250 mm) by providing temporary support,as required,gaskets,nuts& bolts etc.all cornplete as per specification and direction of the Engineer-in-Charge.[The rate Includes cost of flange joints]200mm dia. |
| 17 | Dewatering by pumps including all leads, lifts and making all arrangements of disposal. where continuous flow of water from a source other than natural or ground water is encountered in case of emergency maintenance works related to leakage. breakage and making wet connections. [Note ;- In case of any other situation demanding such emergency dewatering. use of this item is to be approved by the Superintending Engineer/Tender Accepting Authority. This item shall be executed on the specific direction duly supported by proper clarification of the E.I.C. who will be satisfied in absolute discretion that such work has not been necessitated due to any natural source of water or any fault of the Contractor] |
| 18 | M.S. structural works in columns, beams etc. with simple rolled structural members (e.g. joists, angle, channel sections conforming to IS: 226, IS: 808 & SP (6)- 1964 connected to one another with bracket, gussets, cleats as per design, direction of Engineer-incharge complete including cutting to requisite shape and length,fabrication with necessary bolting, metal arc welding conforming to IS: 816- 1969 & IS: 1995 using electrodes of approved make and brand conforming to IS:814- 2004, haulage, hoisting and erection all complete. The rate includes the cost of rolled steel section, consumables such as electrodes, gas and hire charge of all tools and plants and labour required for the work including all incidental chages such as electricity charges, labour insurance charges etc. Payment to be made on the basis of calculated weight of structural members only in finished work as per IS specified weight. Payment for gusset, bracket, cleat, rivets, bolts and nuts may be make by adding the actual weight of such items with the weight of finished structural members or 7% of weight for finished structural members weighing not less than 22.5 Kg. / m. or 15 % of weight for finished structal members weighing less than 22.5 Kg. / m. may be increased allow for bracket, cleat, rivet, bolts and nuts etc. and no seperate payment being made for these items, as per direction of Engineer In Charge. The rates are considered for a height of erection 8m. / 2nd floor level from the ground. Add 1.5% extra over the rate for each additional floor or 4m. beyond initiial 8m. or part thereof. I) For structural members of specified sections weighing less than 22.5 Kg./m (3rd Corrigenda & addenda dated 04.06.2018) |
| 19 | Gas cutting of M.S. pipes and/or M.S. plates of different thickness all complete as per specification and direction of the Engineer-in- Charge. Thikness in mm 5mm to 8mm thick plate |
| 20 | Field welding of machined ends of pieces of M.S pipes and specials forlaying the same inside trench/over ground by means of electric arc welding as per relevant ISspecification using standard electrodes including edgepreparation and charges of deployment of electric generator set with fuel, lubricant, and all other tools and plants all complete as per specification and direction of Engineer-in-Charge. [ Engineer-in-Charge shall approve the electrodes for arc welding before use ]Throat thickness in mm 8mm |
| 21 | SUPPLY RATE OF FOLLOWING MATERIALS AS MENTIONED BELOW CHEQUERED PLATE 10 MM THICK,MAKE: SAIL/TATA/JINDAL A) ABOVE 4 MM THICKNESS |
| 22 | SUPPLY RATE OF FOLLOWING MATERIALS AS MENTIONED BELOW,EN-8/9 ROUND(ROLLED) A) UPTO DIA 100 MM |
| 23 | Cutting to requisite length or shape departmental R.S. joists,channels, angles, tees, plates etc. (Payment to be made on area of cut surface) |
| 24 | Welding in M.S. structural work with gas or electric: (b) Continuous weld. |
| 25 | Taking out Mirzapur or glazed porcelain tiles carefully by chiselling from walls or floor including stacking serviceable material as directed. |
| 26 | Stripping off worn out plaster and raking out joints of walls, celings etc. upto any height and in any floor including removing rubbish within a lead of 75m as directed. |
| 27 | Ordinary Cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement if any, in ground floor as per relevant IS codes.(i) Pakur Variety. (3rd Corrigenda & addenda dated 04.06.2018) |
| 28 | Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary (Ground floor).[Excluding cost of chipping over concrete surface](iii) With 1:3 cement mortar (a) 20 mm thick plaster (3rd Corrigenda & addenda dated 04.06.2018) |
| 29 | Supplying, fitting & fixing 1st quality Ceramic tiles in walls and floors to match with the existing work & 4 nos. of key stones (10mm) fixed with araldite at the back of each tile & finishing the joints with white cement mixed with colouring oxide if required to match the colour of tiles including |
| 30 | Labour Rates Per Diem : 17)Fitter Mechanic. Note: (I)The above rates of labour are exclusive of 10% contractors profit and 1% Labour welfare cess which would be admissible to the Contractors, but contractual percentage will not be applicable. (II) The workersemployed on high rise building or any structure over 30 ft in height and also workers engaged in Tunnel shall be paid 20% extra wages. |
| 31 | Labour Rates Per Diem : 18)Fitter Mechanic (Helper). Note: (I)The above rates of labour are exclusive of 10% contractors profit and 1% Labour welfare cess which would be admissible to the Contractors, but contractual percentage will not be applicable. (II) The workersemployed on high rise building or any structure over 30 ft in height and also workers engaged in Tunnel shall be paid 20% extra wages. |
| 32 | Labour Rates Per Diem : 3)Mazdoor (Male). Note: (I)The above rates of labour are exclusive of 10% contractors profit and 1% Labour welfare cess which would be admissible to the Contractors, but contractual percentage will not be applicable. (II) The workersemployed on high rise building or any structure over 30 ft in height and also workers engaged in Tunnel shall be paid 20% extra wages. |
| 33 | Labour Rates Per Diem : 13)Santras. Note: (I)The above rates of labour are exclusive of 10% contractors profit and 1% Labour welfare cess which would be admissible to the Contractors, but contractual percentage will not be applicable. (II) The workersemployed on high rise building or any structure over 30 ft in height and also workers engaged in Tunnel shall be paid 20% extra wages. |
| 34 | Coating of 'Epoxy' Resin of thickness not less than 160 micron with a lowviscosity,crystallization-resistant epoxy resin base with a reactive diluents combined with high build epoxy amine adducts as per BS 5493 standard and a polyamide or amido polyamine or any other suitable hardener. It shall react with epoxy resin at normal ambient temperature, suitable for solvent-free coatings as per recommended proportion for use on metal,concrete and wood surface to protect from corrosion as well as damagefrom chemical reaction after making the surface free from dust, oil and moisture etc. all complete as per instruction and to the satisfaction of ElC. [This item will be operated on prior permission from the concerned SE/Dy Chief Engineer] |
| 35 | Removal of rubbish, earth etc. from the working site and disposal of thesame beyond the compound, in conformity with the Municipal / Corporation Rules for such disposal, loading into truck and cleaning thesite in all respect as per direction of Engineer in charge. |
| 36 | Sum of Basic Prices (Sl No-1 to 34) |
| 37 | GST @ 18% on the Sum of Sl. No-35 |
| 38 | LWC @ 1% on the Sum of Sl. No.35 and 36 Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Aug 11, 2026
11:30 IST
Tender Published
Tender notice published.
Completed
Sep 09, 2026
18:00 IST
Corrigendum-1 Issued
Clarifications on tender conditions and amendments issued.
Upcoming · 23 daysSep 09, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 23 daysTender Documents
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