Loading
Loading…
Loading…
Tender Value
₹3.9 Cr
EMD Value
₹7.7 L
Closing Date
14 Sept 2026, 3:00 pm
No
No
Single Packet System
Normal Tender
No
Not Applicable
Lowest to Highest
60 days
Expenditure
Capital (Works)
S AND T
13 conditions · 2 needing a document upload
The tenderer must have minimum average annual contractual turnover of V/N or " V" whichever is less; where V= Advertised value of the tender in crores of Rupees, N= Number of years prescribed for completion of work for which bids have been invited. The average annual contractual turnover shall be calculated as an average of "total contractual payments" in the previous three financial years, as per the audited balance sheet. However, in case balance sheet of the previous year is yet to be prepared/ audited, the audited balance sheet of the fourth previous year shall be considered for calculating average annual contractual turnover. The tenderers shall submit requisite information as per Annexure-VIB, along with copies of Audited Balance Sheets duly certified by the Chartered Accountant/ Certificate from Chartered Accountant duly supported by Audited Balance Sheet.
The tenderer must have successfully or substantially completed any of the following during last 07(seven) years, ending last day of month previous to the one in which tender is invited: Three similar works each costing not less than the amount equal to 30% of advertised value of the tender, or Two similar works each costing not less than the amount equal to 40% of advertised value of the tender, or One similar work costing not less than the amount equal to 60% of advertised value of the tender. Similar Nature of work for this tender is -" Electronic Interlocking work { Indoor OR (Indoor + Outdoor)}. And/OR Panel Interlocking work { Indoor OR (Indoor + Outdoor)}. And/OR Route Relay Interlocking work { Indoor OR (Indoor + Outdoor)}."
2 conditions
Please enter the percentage of local content in the material being offered. Please enter 0 for fully imported items, and 100 for fully indigenous items. The definition and calculation of local content shall be in accordance with the Make in India policy as incorporated in the tender conditions.
Material to be supplied from RDSO approved vendor only, otherwise as per extant instructions by Railway Board.
Howrah Division-Signalling work in connection with- Schedule A1-Signalling Cost for Construction of new LHS in lieu of LC Gate No. 18/7/C/E at km 91-7-9 in BDC- KWAE section under AEN-KWAE.Schedule A2-Telecom cost for Construction of new LHS in lieu of LC Gate No. 18/7/C/E at km 91/7-9 in BDC-KWAE section under AEN/KWAE.Schedule B1-Signalling Cost for Construction of new LHS in lieu of LC Gate No. 18/A/6/C/E at km 96/5-7 in BDC-KWAE section under AEN/KWAE. Schedule B2-Telecom Cost for Construction of new LHS in lieu of LC Gate No. 18/A/6/C/E at km 96/5-7 in BDC-KWAE section under AEN/KWAE. Schedule C1- Signalling Cost for Construction of new LHS in lieu of LC Gate No. 18A/4/C/E at km 94/21-23 in BDC-KWAE section under AEN/KWAE. Schedule C2-Telecom cost for Construction of new LHS in lieu of LC Gate No. 18A/4/C/E at km 94/21-23 in BDC- KWAE section under AEN/KWAE.Schedule D1-Signalling Cost for Construction of new LHS in lieu of LC Gate No. 11A at Km 47/27-29 in BDC-KWAE section under AEN/NDAE.Schedule D2-Telecom cost for Construction of new LHS in lieu of LC Gate No. 11A at Km 47/27-29 in BDC-KWAE section under AEN/NDAE.
SDSTE-LHS-18-7-18A-11A~ER
SDSTE-LHS-18-7-18A-11A
Open
Works - General
12 Months
Howrah, West Bengal
₹0
₹7.7 L
19 Aug 2026
19 Aug 2026
31 Aug 2026
852 items across 8 schedules
| # | Description | Unit | Qty | Rate | Amount |
|---|---|---|---|---|---|
| — | — | — | 78,19,780.89 | ||
| — | — | — | 5,400 | ||
| Carrying out relay alteration to the existing relay wiring at relay rack/location box as per the approved circuit diagram. These work includes the releasing of existing unused wires and wiring the relays using 16/0.2 mm copper wire as per RDSO Spec. Wire to be procured from RDSO's approved source and inspection: by RITES [for value of material above Rs. 5.0 lakhs.]. Inspection by consignee [for value of material below than Rs 5.0 lakh]. Note: - wire to be procured from RDSO's approved source only. All required material like wire, soldering material, paint etc. To be supplied by the contractor for execution of the work. | — | 20.00 | — | — | |
| — | — | — | 59,500 | ||
| Supply of 1 x 10 Sq.mm. {Red/Black/Green} multi strand copper power wire as per IS:694:20 10 or latest, 140 conductor each dia 0.30mm +/- 0.01 with insulation thickness of 1.0 mm and nominal conductor resistance of 1.91 ohms/km and test parameters as per RDSO Specn.No.IRS:S- 6/89(Amnd.3) or latest.Colour of the wire which is required will be specified b y the Engineer incharge. Inspection: (i) RDSO/ RITES if value of item in work m ore tha n 5 lakhs (ii) Consignee subject to procurement from RDSO approved vendors if value of whole item in work less than 5 lakhs as per extant instructions by Railway Board. | — | 500.00 | — | — | |
| — | — | — | 65,500 | ||
| "Supply of 1 x 16 Sq.mm. {Red/Black/Green} multi strand copper power wire as per IS:694:20 10 or latest, 126 conductor each dia 0.40mm +/- 0.01 with insulation thickness of1.0 mm and nominal conductor resistance of 1.21 ohms/ km and test parameters as per RDSO Specn. No.IRS: S-76/89(Amnd.3) or latest. Colour of the wire which is required will be specified b y the Engineer incharge. Inspection: (i) RDSO/RITES if value of item in work more than 5 lakhs(ii) Consignee subject to procurement from RDSO approved vendors if value of whole item in work less than 5 lakhs as per extant instructions by Railway Board." | — | 500.00 | — | — | |
| — | — | — | 1,38,500 | ||
| "Supply of 1 x 25 Sq.mm. {Red/B1ack) multi strand copper power wire as per IS:694: 2010 or latest, 196 conductor each dia 0.40mm +/- 0.01 with insulation thickness of 1.2 mm and nominal conductor resistance of 0.78 ohms/km and test parameters as per RDSO Specn. No.IRS:S- 76/89(Amnd.3) or latest.Colour of the wire which is required will be specified by the Engineer incharge. Inspection: (i) RDSO/ RITES if value of item in work more than 5 lakhs(ii) Consignee subject to procurement from RDSO approved vendors if value of whole item in work less than 5 lakhs as per extant instructions by Railway Board." | — | 500.00 | — | — | |
| — | — | — | 13,500 | ||
| Termination of Outdoor Cables (Main Cables / tail cables) at both ends in location boxes, cable termination rack in relay room, station building, generator room etc. The item includes dressing of cables and wires with dressing threads as per standard practice. All material required for this item will be supplied by contractor. The outdoor cable shall be terminated in Relay Room, DG Room, ASM Room etc under supervision and instructions issued by Engr. incharge of the work. Inspection: Consignee | — | 1500.00 | — | — | |
| — | — | — | 27,500 | ||
| "Supply of Disconnect Terminal Block, Screw less type, as per RDSO Spec. No. RDSO/ SPN/189/2004(Modular Terminal Blocks, Fuse Terminal Blocks & Miniature fuse link o f international standard for Railway signalling) With latest amendments. Inspection: (i) RDSO/RITES if value of item in work more than 5 lakhs(ii) Consignee subject to procurement from RDSO approved vendors if value of whole item in work less than 5 lakhs as per extant instructions by Railway Board."A)Supply of Disconnect Terminal Block, Screw less type, 4-wire front entry (Two in-put & Two out-put) The colour will be decided by Engineer - in - Charge. (Preferably In Blue, Red & Grey Colors in the ratio of 1:2:3) | — | 500.00 | — | — | |
| — | — | — | 5,000 | ||
| "Supply of Disconnect Terminal Block, Screw less type, as per RDSO Spec. No. RDSO/ SPN/189/2004(Modular Terminal Blocks, Fuse Terminal Blocks & Miniature fuse link o f international standard for Railway signalling) With latest amendments. Inspection: (i) RDSO/RITES if value of item in work more than 5 lakhs(ii) Consignee subject to procurement from RDSO approved vendors if value of whole item in work less than 5 lakhs as per extant instructions by Railway Board."B)Supply of End plate 2.5mm/0.091 in thick as per site requirement. | — | 500.00 | — | — | |
| — | — | — | 5,000 | ||
| "Supply of Disconnect Terminal Block, Screw less type, as per RDSO Spec. No. RDSO/ SPN/189/2004(Modular Terminal Blocks, Fuse Terminal Blocks & Miniature fuse link o f international standard for Railway signalling) With latest amendments. Inspection: (i) RDSO/RITES if value of item in work more than 5 lakhs(ii) Consignee subject to procurement from RDSO approved vendors if value of whole item in work less than 5 lakhs as per extant instructions by Railway Board."C)Supply of End Stopper 10mm/0.0394 in width as per site requirement. | — | 500.00 | — | — | |
| — | — | — | 21,800 | ||
| "Supply of Disconnect Terminal Block, Screw less type, as per RDSO Spec. No. RDSO/ SPN/189/2004(Modular Terminal Blocks, Fuse Terminal Blocks & Miniature fuse link o f international standard for Railway signalling) With latest amendments. Inspection: (i) RDSO/RITES if value of item in work more than 5 lakhs(ii) Consignee subject to procurement from RDSO approved vendors if value of whole item in work less than 5 lakhs as per extant instructions by Railway Board."D)Supply of Carrier Rails for above 35mm x 7.5mm, 1mm/0.039 in thickness un-slotted type as per site requirement. | — | 200.00 | — | — | |
| — | — | — | 3,200 | ||
| "Supply of Disconnect Terminal Block, Screw less type, as per RDSO Spec. No. RDSO/ SPN/189/2004(Modular Terminal Blocks, Fuse Terminal Blocks & Miniature fuse link o f international standard for Railway signalling) With latest amendments. Inspection: (i) RDSO/RITES if value of item in work more than 5 lakhs(ii) Consignee subject to procurement from RDSO approved vendors if value of whole item in work less than 5 lakhs as per extant instructions by Railway Board."E)Supply of Markers strip. | — | 200.00 | — | — | |
| — | — | — | 1,000 | ||
| "Supply of Disconnect Terminal Block, Screw less type, as per RDSO Spec. No. RDSO/ SPN/189/2004(Modular Terminal Blocks, Fuse Terminal Blocks & Miniature fuse link o f international standard for Railway signalling) With latest amendments. Inspection: (i) RDSO/RITES if value of item in work more than 5 lakhs(ii) Consignee subject to procurement from RDSO approved vendors if value of whole item in work less than 5 lakhs as per extant instructions by Railway Board."F)Supply of shooting link (jumper) (part no - 283- 402 or similar) , suitable for 0.2 to 16 sqmm terminal block 283-901 or similar. | — | 500.00 | — | — | |
| — | — | — | 39,500 | ||
| Supply & installation of polymer positive temperature coefficient device (PPTC) resettable fuses, for outdoor circuits. 30V/2.5A for track feed and 60V/1.1A in place of 24V/2A fuse and 120V/1.1A for signal lighting. Make- RAYCHE M, BOURNS, LITTLE FUSE, FUZETEC or TYCO. Quantity as per site engineer. Note- PPTC fuses are to be connected with crimped ring type lugs. ". Inspection: Consignee. | — | 500.00 | — | — | |
| — | — | — | 67,300 | ||
| "Supply & installation of 'C' class surge protection arrangement at feed end DC Track Ckt Specn no. As follows: - voltage 230 V AC rated voltage 350V AC DIS. CAP 10KA TO 20 KA TIME 100 MILIsecond protection 1.2V degree protection IP.20 TEC-61643-1. Inspection : by consignee." | — | 50.00 | — | — | |
| — | — | — | 2,11,791 | ||
| Supply of Split DWC Pipe in the cable Trench parallel to track or as per Site and approved cable route plan. Split DWC pipes having non flame propagation and Anti Roddent properties (minimum outer dia 250 mm & minimum Inner Dia 217 mm) with out socket /coupler as per IS:14930, Pt-II(ISI Marked). Inspection : Consignee | — | 300.00 | — | — | |
| — | — | — | 13,824 | ||
| Laying & Installation of Split DWC Pipe in the cable Trench parallel to track or as per Site and approved cable route plan. This includes supply of Split DWC pipes having non flame propagation and Anti Roddent properties (minimum outer dia 175 mm & minimum Inner Dia 148 mm) as per IS:14930, Pt-II(ISI Marked) OR LATEST | — | 300.00 | — | — | |
| — | — | — | 938.8 | ||
| Termination of new/ alteration of main/tail cables on the existing terminals/ fuse blocks in apparatus cases/battery boxes/ CT boxes/ cable termination racks as per approved circuit diagram. The terminal particulars are to be re-painted / corrected on the doors of apparatus cases/ battery boxes/cable termination boxes and FTOT index board as instructed byRailway representative at site. This work includes alteration of lettering / painting, closing the opening created for entry of new cables in the apparatus cases with masonry brick work and sealing the bottom of the apparatus cases/ cable termination racks with cablecompound.[Paints, wire PVC3/0.75mm and 16/0.2mm copper,sealing compound, bricks, cement,river sand and all other required miscellaneous materials shall be supplied by the contractor]. | — | 20.00 | — | — | |
| — | — | — | 1,11,328 | ||
| Supply of full size apparatus case (GKP type) (as per DRAWING NO. SW SK NO. 4/90 & & other applicable GKP SW Drawing). This includes supply of location box (GKP type) with 'E' type lock & key, fitted on location door on both side, E Type lock (ward No will be specified by Engineer-in Charge) as per RDSO Drg. No. SA 3376 and Key to Drg. No. 3377 as per RDSO drawing No. RDSO/S- 11500. Inspection: (i) RITES if value of item in work more than 5 lakhs or as per extant policy (ii) Consignee subject to procurement from RECOMMENDED L I S T O F F I R M S FOR MECHANICAL SIGNALLING ITEMS if value of whole item in work less than 5 lakhs or as per extant policy | — | 8.00 | — | — | |
| — | — | — | 28,256 | ||
| Casting, concreting and curing of concrete foundation ((in ratio 1:3:6), erection and installation of full size apparatus case (GKP type)/Stainless Steel (SS) Apparatus Case as per DRG.NO. S&T/C-6/98(NKG) with 'E' type lock on CC foundation. This includes cost of all materials required for fixing holding down bolts, casting, concreting. Note: - bolts, nuts and washers, bitumen compound to be supplied by contractor and bitumen compound to be used in between apparatus case and foundation as per site engineer. This also includes bottom of apparatus cases filled with sand and the outside covered with masonry work and neat cement plastering. Note: - Location boxes to painted with anti- corrosive paints as per IS:- 9862-1981, one and half feet from the bottom, on all surfaces- both inside and outside. Inspection: Consignee | — | 8.00 | — | — | |
| — | — | — | 38,640 | ||
| Fixing by slotted angle, wiring of terminal strips, hylam strip, relays, fuses with base, fixing of hard wood shelves for full size apparatus case with termination & Earthing of cables and wiring with lettering as required including supply of slotted angles, wires, ferrules for marking and miscellaneous materials per location to be supplied by contractor. (all materials except relay, terminal strips, Bakelite strip, fuses with base and hard wood shelves to be supplied by the contractor). Wires to be used for this purpose should be procured from RDSO'S approved firm and to be inspected by RDSO. [Quantity of wires to be specified by contractor]. NB- power cable to be terminated with proper lugs and required buss bar and other terminals to be supplied by the contractor. Inspection: Consignee | — | 8.00 | — | — | |
| — | — | — | 4,504 | ||
| Supply of hard wood shelves thickness 25 mm for keeping equipment's and batteries in the location box (FULL or HALF GKP /other type) with suitable varnish and anti-termite chemicals fitted on angles with nuts & bolts. Inspection: -Consignee (note-balance quantity may be taken from rly store if available) .A)950 x 400 x 25 MM for full size location box . | — | 8.00 | — | — | |
| — | — | — | 36,672 | ||
| Supply of paper base hylam sheet 12 mm thick. Inspection: consignee. | — | 6.40 | — | — | |
| — | — | — | 47,121 | ||
| "Supply of colour light signal post 5.6 mtr and ladder 5.5 mtr with bases for ladder & post as per RDSO SPEC. NO. IRS:S-6-81 (or latest) and DRG. NO. SA-23156 (ADV), ALT-1 (OR LATEST). CLS base as per DRG. NO. S-2011/M (OR LATEST).Note: - this includes signal post, base, ladder, ladder base, platform, rail guard & blanking off. Materials to be procured only from RDSO approved list of firms for manufacture & supply of mechanical signalling items. Inspection: (i)RDSO/RITES if value of item in work more than 5 lakhs(ii) Consignee subject to procurement from RDSO approved vendors if value of whole item in work less than 5 lakhs as per extant instructions by Railway Board." | — | 3.00 | — | — | |
| — | — | — | 81,927 | ||
| Installation, erection and wiring of CLS unit, post, ladder & base LED unit including paying out of tail cable from location box and earthing of CLS (LED type). This includes supply of non - metallic (FRP) colour light signal housing multi-unit type for Rly. Signalling suitable for RE Area 3 Aspect complete without lenses, lamps and signal transformer as per DRG. NO. SA 23001/A/M(ADV), ALT.8 and as per SPEC. NO. RDSO/SPN/194/2006 (VER1.0) OR LATEST. FRP material as per rdso spec no. Rdso/spn/151/1997 or LATEST. All drawings should be as per latest. Materials to be procured from RDSO's approved firm only. Note: Signal unit should be compatible to 'LED' type. Note: installation, erection & wiring of signalling unit includes led signal lighting unit including current regulator. This also includes protection of unit from rain water.A)"Supply. Inspection: (i)RDSO/RITES if value of item in work more than 5 lakhs(ii) Consignee subject to procurement from RDSO approved vendors if value of whole item in work less than 5 lakhs as per extant instructions by Railway Board." | — | 3.00 | — | — | |
| — | — | — | 7,056 | ||
| Installation, erection and wiring of CLS unit, post, ladder & base LED unit including paying out of tail cable from location box and earthing of CLS (LED type). This includes supply of non - metallic (FRP) colour light signal housing multi-unit type for Rly. Signalling suitable for RE Area 3 Aspect complete without lenses, lamps and signal transformer as per DRG. NO. SA 23001/A/M(ADV), ALT.8 and as per SPEC. NO. RDSO/SPN/194/2006 (VER1.0) OR LATEST. FRP material as per rdso spec no. Rdso/spn/151/1997 or LATEST. All drawings should be as per latest. Materials to be procured from RDSO's approved firm only. Note: Signal unit should be compatible to 'LED' type. Note: installation, erection & wiring of signalling unit includes led signal lighting unit including current regulator. This also includes protection of unit from rain water.B)Execution | — | 3.00 | — | — | |
| — | — | — | 24,195 | ||
| Casting, concreting & curing of foundation for Main signal including cost of all materials required for casting and concreting. All materials required for execution will be supplied by the contractor including cement, sand & stone chips as per DRG. NO. S&T/C-42(NKG). | — | 3.00 | — | — | |
| — | — | — | 12,260 | ||
| Releasing of existing tail cables and drawl of new tail cables for colour light signals up to four aspects with or without route indicator, post type shunt signal and calling signals. Termination of new tail cables and wiring using wire PVC 3/0.75 mm copper as per latest RDSO spec. This work includes drawl of new tail cables into the signal post duly releasing the existing tail cables from the relevant signals [Wire PVC 3/0.75 mm copper, paints and all other miscellaneous materials shall be supplied by the contractor. Wire to be procured from RDSO's approved source only]. Inspection- consignee. | — | 4.00 | — | — | |
| — | — | — | 4,872 | ||
| Dismantling of existing main signal including dependent shunt signal, calling on signal if any, fitted on the same post along with signal post, signal unit, ci base without damaging any part. | — | 4.00 | — | — | |
| — | — | — | 8,848 | ||
| Dismantling of existing Signal Foundation (upto ground level by hydraulic breaker). | — | 4.00 | — | — | |
| — | — | — | 1,119 | ||
| "Supply, Fabrication and Fixing of Retro reflective Nomenclature Board of size 254 mm x 358 mm made of 2mm thick aluminium sheet & high intensity prismatic (hip) grade retro reflective sheet (TYPE -IV) including fixing arrangement for fixing them on existing post per DRG. NO. S&T/SDAH /SK-1386 and as per standard practice.Inspection: (i)RDSO/RITES if value of item in work more than 5 lakhs(ii) Consignee subject to procurement from RDSO approved vendors if value of whole item in work less than 5 lakhs as per extant instructions by Railway Board." | — | 3.00 | — | — | |
| — | — | — | 5,026 | ||
| "Supply of cast iron offset bracket for Main Signal with U clamps, nuts, washers complete DRG. NO. SA-23080/ADV/ALT-1. RDSO SPEC. NO. IRS-S-10/78. Inspection: consignee. Note : Offset bracket has to be connected wherever necessary as per site engineer." | — | 2.00 | — | — | |
| — | — | — | 2,450 | ||
| "Casting, concreting and curing of foundation (1:3:6) and erection of SLB/BSLB/SB/WB/ Stop board as per DRG. NO S&T/ C/ 34(NKG) all materials required for the work including cement, rail post etc. To be supplied by the contractor. This includes supply of SLB/BSLB/SB/WB/ Stop board as per RDSO DRG NO. SA-2375 (ADV.) (WITH LATEST AMDT.) for SLB/BSLB and as per RDSO DRG NO. 7235/ B ( WITH LATEST AMDT.)for SB/WB/ Stop Board."A)"Supply. Inspection: (i)RDSO /RITES if value of item in work more than 5 lakhs(ii) Consignee subject to procurement from RDSO approved vendors if value of whole item in work less than 5 lakhs as per extant instructions by Railway Board." | — | 2.00 | — | — | |
| — | — | — | 11,440 | ||
| "Casting, concreting and curing of foundation (1:3:6) and erection of SLB/BSLB/SB/WB/ Stop board as per DRG. NO S&T/ C/ 34(NKG) all materials required for the work including cement, rail post etc. To be supplied by the contractor. This includes supply of SLB/BSLB/SB/WB/ Stop board as per RDSO DRG NO. SA-2375 (ADV.) (WITH LATEST AMDT.) for SLB/BSLB and as per RDSO DRG NO. 7235/ B ( WITH LATEST AMDT.)for SB/WB/ Stop Board." B)Execution | — | 2.00 | — | — | |
| — | — | — | 30,290 | ||
| Fabrication and fixing of phenolic laminated sheet of size 10/12/20 mm thick in Full Apparatus Case by providing all fixtures as per Railway Drawing including fixing of PVC coated string rods at the back side for cable support with contractor's own materials. The work shall be done as per instructions of Rly engineer at site. Inspection: Consignee | — | 10.00 | — | — | |
| — | — | — | 5,564 | ||
| Alteration/modification in the existing location boxes (full size), fixing of equipment's, cable insertion, termination, wiring, testing & commissioning, two coat painting, lettering to suit the circuits as per approved wiring diagrams. This includes filling with sand and plastering the same. | — | 2.00 | — | — | |
| — | — | — | 98,320 | ||
| Modification/ upgradation, validation and alteration of data logger as per site engineer. This includes changes of NMDL software etc. Also data logger to be interfaced with PI/ EI equipment keeping at relay room. This work includes validation, wiring, etc. For this work necessary wire from relay to tag block & from tag block to data logger and tag block, terminal, wiring material etc. required for this work to be supplied by contractor. Wire to be procured from RDSO approved firms and to be inspected by consignee. | — | 2.00 | — | — | |
| — | — | — | 47,056 | ||
| Supply of maintainer's furniture of godrej make or superior and each set consist of(i) executive revolving bearing series low back-floating chair with normal arms cushioned chair-01 Nos. (ii) Executive table size 1650x900x728 mm with 3 drawers one side locker- 01 no.(iii) visitor chair seat & back cushion with high density foam with plastic pvc handle capsule type painted back-03 nOS. | — | 2.00 | — | — | |
| — | — | — | 56,144 | ||
| Designing and Plotting of Signalling Interlocking Plan(SIP) in AUTOCAD. Two copies of prints with soft copy will be submitted to Railway for checking. If alterations are suggested /proposed by Railways then again two copies of prints will be submitted for advance approval after carrying out all the alterations as suggested/proposed by the Railways. Tracings will be submitted for all the diagrams mentioned above for the purpose of approval by Railway prior to commissioning of station. | — | 2.00 | — | — | |
| — | — | — | 12,214 | ||
| Design of circuits and plans to suit layout given in the signalling plan of IBS/ABS /LC GATE. All plans and wiring diagram shall be prepared on Auto Cad Drawing and supplied with CD. This will include supply of Control cum Indication panel diagram, Route section plan, square sheet, wiring diagrams, Relay rack/Relay arrangements, Bus bar details, Fuse analysis, contact analysis, Relay room tag block analysis, panel tag block analysis, Power panel diagram, IPS wiring diagram, Auto change over diagram, Power equipment arrangement with program switch, Block circuit wiring diagram, Digital Axle counter wiring diagram and all other relevant drawings. NOTE: The contactor shall initially supply 2 sets of documents (Paper Prints) for approval of Railways. Railway will return one set to the contactor duly approved with alterations/ corrections, if any. The contactor shall incorporate Railways' alterations/ corrections / comments, if any, in the tracing & CD without any deviation and submit all the tracings and Final CD complete with all respect for Approval of Railways. After Approval of Railways on the tracings, the contractor shall submit 3 sets of final approved diagrams to the Railways within IN days. He shall ensure that each sheet has a block for signature of railway official as well as a block for signature of firm, duly signed by the authorized signatory of the firm. The name of the work as given by Railways shall be written on every sheet under the work column. All the drawing shall be supplied in a good quality folder for each IBS/ABS/LC Gate. | — | 1.00 | — | — | |
| — | — | — | 1,17,594 | ||
| Design of circuits in connection with preparation of wiring diagrams as per approved Signalling Plan and submission of indoor as well as outdoor completion documents for alteration work. It includes Route Section Plan (RSP), Selection Table (ST), Locking Table (LT) and Control Panel Diagram (CPD). Two copies of prints with soft copy will be submitted to Railway for checking. If alterations are suggested/proposed by Railways, then again two copies of prints will be submitted for advance approval after carrying out all the alterations as suggested/proposed by the Railways. Tracings will be submitted for all the diagrams mentioned above for the purpose of approval by Railway prior to commissioning of station. All drawings will be prepared in CAD. The wiring diagrams will consist relay rack analysis, relay contact analysis, fuse details. Tag block analysis etc. A separate CD/Pen drive will be submitted to Railway for each station along with original tracings. It also includes preparation a n d supply of laminated o n e s e t o f a l l completion plans including circuit diagrams and indoor as well as outdoor completion documents on standard 75- micron polyester film for station in Auto CAD. 6 (Six) sets photo copies will be submitted for each of the documents mentioned below: Cable Route Plan, Cable Core Chart, Location details plan for all t h e locations, Cable termination details, Signalling Plan, SWR Diagram, Wiring Diagrams, Selection Table, Locking Table, Contact Analysis, Fuse and Tag Block Analysis of Relay Rack and CT Rack, Control Cum Indication Panel, Power Panel Diagram, Track Circuit Plan, Rack Erection Plan and Junction Box details etc. Note: Total cost of design and completion documents for a station/yard will be calculated on basis of total possible movements/routes as per Selection Table (ST). | — | 2.00 | — | — | |
| — | — | — | 20,850 | ||
| Supply, Transportation at site and Installation of RCC cable route marker engraved and painted on both side along the route at every 30 meter and at route diversion. The cable marker shall be as per ER Drawing DRG NO. S.I.- S&T/1/2024(SHEET NO. 1) Technical Policy Circular -108 Dated-22.04.2024 or latest. The fixing work is to be done as per extant practice of E. Rly. and as per Railway site supervisor. | — | 50.00 | — | — | |
| — | — | — | 5,564 | ||
| Alteration/modification in the existing location boxes (full size), fixing of equipment's, cable insertion, termination, wiring, testing & commissioning, two coat painting, lettering to suit the circuits as per approved wiring diagrams. This includes filling with sand and plastering the same. | — | 2.00 | — | — | |
| — | — | — | 1,302 | ||
| Dismantling of location box / RCC Goomty including all its accessories & concrete foundation. | — | 2.00 | — | — | |
| — | — | — | 5,518 | ||
| Shifting/lifting of location box to facilitate earthwork of Engg/Con.This includes filling with sand and plastering inside location box. | — | 2.00 | — | — | |
| — | — | — | 2,080 | ||
| "Painting of two coats of synthetic enamel paint over one coat of primer on the following after scraping & cleaning surface wherever necessary with contractor's own supply of paints. Wherever required contractor shall apply coating of epoxy paint also as per instructions of site-in-charge. Epoxy paint will be supplied by Railways. NOTE: - The paint and primer should be from Asian Paints/ Nerolac / Dulux / Berger. The primer / enamel paints (Aluminum synthetic, black enamel, brilliant white and yellow) will be as per (IS 5660 of 1970) / (IS 2932 of 1974) ofApparatus Case Full Size. (Outside & inside)" | — | 8.00 | — | — | |
| — | — | — | 25,78,334.49 | ||
| Supply of Underground, Armoured, Unscreened Railway signaling cable (Heavy Duty) with high conductivity copper conductor of size 12 Core X 1.5 sq mm as per Specn. No.IRS: S- 63/2014 (Rev.4.0) with latest Amdt.if any. Inspection : RDSO | — | 9.00 | — | — | |
| — | — | — | 38,100 | ||
| Supply of Medium class GI pipes 100 mm dia {4.5 mm thickness} as per IS 1239 (Part 1}: 2004 or Latest with socket & coupling on culverts bridges or at any other locations as decided by Site Engineer. It includes supply of all material required for fixing arrangement. Contractor will also supply flexible/corrugated HDPE pipe at the end of GI pipe to protect the cables from sharp edges and sudden bends. | — | 50.00 | — | — | |
| — | — | — | 4,900 | ||
| Laying & Fixing of Medium class GI pipe 50/ 100 mm dia {4.5 mm thickness} as per IS 1239 {Part 1}: 2004 with socket & coupling on culverts bridges or at any other locations as decided by Site Engineer. It includes installation of all material required for fixing arrangement. Contractor will install flexible/corrugated HDPE pipe at the end of GI pipe along with any masonry work(if required) to protect the cables from sharp edges and sudden bends. | — | 50.00 | — | — | |
| — | — | — | 1,810 | ||
| Transferring of Signaling/Telecom cables from existing Location box to New Location box . The work include breaking/ Dismantling of Existing foundation of locations, excavating and removing / segregating coils of 2C/6C/12C/19C/24C/30C/Quad cables which may be about 10 mtrs. in length. These cables are to be disconnected and removed from the existing location one by one as per the instruction and under the supervision of Railway staff present at site. The cable is then to be inserted and terminated in new location box. The item includes neatly dressing of cable, making wiring tree etc. The material required to dressing /1acing will be arranged by contactor. The work is required to be done systematically and with due precaution during the block or disconnection within the time that may be allowed. The excavation work to be done carefully without damaging the cable to avoid undue failure. (Termination charges will be given separately). Note: Proportionate payment will be made if cable of other length. One No unit One cable of 10 m length}. | — | 5.00 | — | — | |
| — | — | — | 4,90,000 | ||
| Excavation of cable trench as per cable route plan, 1.2 Mtr. deep and of 0.3 Mtr. to 0.6 Mtr. wide at bottom without brick alongside the track in all kinds of soil, conforming to distances as per cable route plan and refilling. This work includes clearing of route from bushes etc. The work shall be done as per the extant practice on Eastern Railway and instructions of Railway Engineer at site. Note:-(a) for all trenches from distant signal to home signal and to relay room, the minimum headway above the uppermost cable in the trench should be 600mm. If due to a large no. Of cables headway is not available, 4" of 1:2:4 concreting should be done. Note:-(b-1) payment wifi be made as per actual work done on pro-rata basis, if required depth is not available at site. (b-2) if the depth of trench is not uniform in a span of 100 mtr. Or shorter lengths if site condition demands along the cable run, minimum depth will be taken for that particular stretch for payment. | — | 2000.00 | — | — | |
| — | — | — | 25,600 | ||
| Repair of pucca roads to original state in level crossing area after cable laying. | — | 100.00 | — | — | |
| — | — | — | 50,000 | ||
| Laying of S&T Cables of various cores/ pairs/ quads in trenches/ GI pipes/ RCC pipes/ DWC pipes/ Trunking. This also includes laying of cables in track crossings & road crossings. Item includes provision of labels of coloured plastic adhesive tapes or any other identifiable material on each cable to give the cable number at each Gantry Post/hectometre post.(Cables will be meggered before and after its laying by contractor under supervision of Railway Representative and he will submit the meggering report of each testing). Length of the cable laid includes the length of the cable coiled for termination purposes. | — | 10000.00 | — | — | |
| — | — | — | 1,79,800 | ||
| Cement concrete work for miscellaneous items in the ratio 1: 3: 6. Item includes excavation, ramming, curing and plastering with cement & sand mixture (aggregate not exceeding 3.8 cm.) (Aggregate cement & sand to be supplied by the contractor). Wherever depth of 0.5 m cable trench is not feasible, cable shall be protected as :- Preparation of cement mixture 1:3:6 with contractor's own materials and spreading cement concrete mixture layer of 100 mm thick over the already laid cables in the excavated trench. | — | 50.00 | — | — | |
| — | — | — | 1,51,470 | ||
| "Supply of basic material to construct unit maintenance free earth as per RDSO Specs. No RDSO/SPN/197 Ver.1.0 or latest and conforming to RDSO Drg. No. SDO / RDSO/ E&B/001 or Latest. Necessary testing certificate of UL, IEC to be produced. It consist of following:(a) Copper bonded steel electrode of 3.0 m long,17.2 mm dia with copper bonding thickness of minimum macrons and UL listed and marked = 1 no.(b) Earth enhancement material supplied in sealed bags of minimum 10 kg = 3 nos.(c) Copper strip of 150x25x6 mm, to terminate earth rod - 1 no.(d) Copper strip of 300x25x6 mm (MEEB) = 1 no.(e) Copper strip of l50x25x6mm (SEEB) = 1 no.(ii) Supply of 35 sq. mm multi strand single core PVC insulated copper cable as per IS: 694 for connecting main earth electrode to MEEB in the equipment room in duplicate.(minimum 10 meter) (iii) Supply of 16 sq. mm multi strand single core PVC insulated copper cable as per IS: 694 for connecting MEEB to SEEB and SPD to MEEB (minimum 10 meter)(iv) Supply of 10 sq. mm multi strand single core PVC insulated copper cable as per IS: 694 for connecting various equipments to SEEB(v) Supply of copper lug sleeve for 3/16 cable. Inspection: RDSO" | — | 10.00 | — | — | |
| — | — | — | 65,790 | ||
| "Installation of Unit Maintenance Free Earth as supplied in above item. It includes ( i ) Digging the earth to the required depth.(ii) Insertion o f electrode.(iii) Filling of earth enhancing compound (Approx.30 Kg)(iv) Provision of exothermic weld connections to copper tape of 25 mm x 6 mm x 150 mm to the earth electrodes. All material tools and features required for weld will be arranged by contractor.(v) This also includes CC cover 1.5 ft x 1.5 ft. 1 ft wall thickness 2 inch with cover 3 inch thickness. Cables 35 Sq mm/ 16 Sq mm/10 sq mm for connecting earth to busbar, busbar to busbar and bus bars to various equipments. Earth electrode of 17.20 mm dia and 3.00 meter long high tensile low carbon steel circular rods molecularly bonded with copper a n d outer surface (minimum copper bonding thickness of 250 microns to made requirement of under writer's laboratories (UL) 467-2007 or latest. Copper strips of 150 mm x 25 mm x 6 mm to be welded with each earth electrode, copper strips of 300 mm x 25 mm x 6 mm for main equip- potential bus bar, copper strips of 150 mm x 25 mm x 6 mm sub equip-potential bus bar in relay room, power room and panel room. GI strip 25 mm x 2 mm for ring formation of earth pits Earth enhancement material in bags for each Earth Electrode. Inspection chamber of site 300 mm x 300 mm x 300 mm (Inside dimension) of approximate 50 mm thick with pulling hooks to cover t h e earth pits. Note: The installation of this item shall be carried out by the contractor as per RDSO Specs. No RDSO/SPN/197 Ver.1.0 or latest and conforming to RDSO Drg. No. SDO / RDSO/ E&B/001 or Latest.Inspection: Consignee" | — | 10.00 | — | — | |
| — | — | — | 29,920 | ||
| "Supply of earth electrode mild steel galvanized, light class, IS:1239(PART-I) - 1979.earth electrode pipe should be with 3 mm thick, 50 mm dia and perforated(staggered),5 mm dia holes, 2 nos per 305 mm length with clamp of MS FLAT(galvanised) of size 35 mm x 6 mm (SPEC. NO.226 STD). Earth pipe should include CI threaded cap. Materials to be procured and designed as per CSTE /ER'S DRG.NO.SI/TYP/0097 DTD. 25.03.25. Inspection: - BY RITES[for value of material above Rs. 5.O lakhs.]. Inspection by consignee [for value of material below than Rs 5.0 lakh]" | — | 20.00 | — | — | |
| — | — | — | 18,220 | ||
| Supply of MS FLAT (SPEC. NO. 226 STD or latest) of size 35 mm x 6 mm with length 5 mtr with holes of 12 mm dia at both ends as per CSTE /ER'S DRG.NO.SI/TYP/0097 DTD. 25.03.25(or latest). Inspection : by consignee. | — | 20.00 | — | — | |
| — | — | — | 23,220 | ||
| Fixing of earth electrode including laying and installation of MS flat of size 35 mm x 6 mm with length 5 mtr or as per extant practice of Eastern Railway. As per CSTE /ER'S DRG.NO.SI/TYP/0097 DTD. 25.03.25 for apparatus cases, signal post & other equipment as per instruction of site engineer. Provision for fixing M S fl a t a t apparatus cases/ signal post/other equipment should be made by the firm at site. Full threaded bolts of 10 mm dia and length 40 mm should be welded in the apparatus cases in such way that the MS flat at apparatus case end can be fixed from outside or from inside. Welding arrangement with accessories a n d welding materials should be arranged by the contractor for fixing of bolts at equipment end where required as per instruction of site engineer. All hardware and other miscellaneous materials required for installation to be supplied by the contractor except earth electrodes and MS flat. Note:-all materials required to be arranged by the contractor except 2 core cable will be supplied by the railway. | — | 20.00 | — | — | |
| — | — | — | 1,82,043.6 | ||
| Disconnection & Reconnection of All Signalling Equipments like Cables/TLJB/Point Machine G.Fitting/Point JB/BPAC Track Device etc. immediate before and after the work during block period. This Includes cost of the Releasing of Signalling equipmets and Reconnection of the same after the work. This includes 1 Fitter, 1 Black Smith, 1 Hammer Man, 1Cable Jointer, 1 Bonding fitter, 4 Khalasis. | — | 60.00 | — | — | |
| — | — | — | 4,270 | ||
| Supply of fuse block (PBT) to spec.no. IRS-S- 75/2006(REV-2) OR LATEST, DRG.NO.SA- 2 3 7 4 8 w i t h f u s e inserts cartridge, non- deteriorating type to spec.IRS-S-78/92 with latest amendment, to be mounted inside the location box on hylum sheet. Inspection: - RDSO.A)Fuse, non- deteriorating(2A) type, cylindrical(IRS-S-78/92) [quantity as per site requirement] | — | 70.00 | — | — | |
| — | — | — | 4,880 | ||
| Supply of fuse block (PBT) to spec.no.IRS-S- 75/2006(REV-2) OR LATEST, DRG.NO.SA- 2 3 7 4 8 w i t h f u s e inserts cartridge, non- deteriorating type to spec.IRS-S-78/92 with latest amendment, to be mounted inside the location box on hylum sheet. Inspection: - RDSO.B)Fuse, non- deteriorating(6A) type, cylindrical(IRS-S-78/92) [quantity as per site requirement] | — | 80.00 | — | — | |
| — | — | — | 26,700 | ||
| Supply of fuse block (PBT) to spec.no.IRS-S- 75/2006(REV-2) OR LATEST, DRG.NO.SA- 2 3 7 4 8 w i t h f u s e inserts cartridge, non- deteriorating type to spec.IRS-S-78/92 with latest amendment, to be mounted inside the location box on hylum sheet. Inspection: - RDSO.C)Fuse Base. | — | 150.00 | — | — | |
| — | — | — | 3,34,480 | ||
| "Supply of LED signal lamps for Main colour light Signal, 110V AC retrofittable in existing CLS housing and compatible with AC LED ECR as per RDSO Specn. No.RDSO/SPN/ 199/2010(Rev.1)or latest. Inspection: RDSO"A)RED Aspect | — | 40.00 | — | — | |
| — | — | — | 3,35,480 | ||
| "Supply of LED signal lamps for Main colour light Signal, 110V AC retrofittable in existing CLS housing and compatible with AC LED ECR as per RDSO Specn. No.RDSO/SPN/ 199/2010(Rev.1)or latest. Inspection: RDSO"B)YELLOW Aspect | — | 40.00 | — | — | |
| — | — | — | 3,77,520 | ||
| "Supply of LED signal lamps for Main colour light Signal, 110V AC retrofittable in existing CLS housing and compatible with AC LED ECR as per RDSO Specn. No.RDSO/SPN/ 199/2010(Rev.1)or latest. Inspection: RDSO"C)GREEN Aspect | — | 40.00 | — | — | |
| — | — | — | 5,100 | ||
| Supply of Drill bit 9/32" (7.14MM). IS:5099/83 AND 5101/69 OR LATEST. Inspection: Consignee | — | 100.00 | — | — | |
| — | — | — | 1,34,320 | ||
| Supply of Ground Connection [BG] Threaded Type for IRS type Point Machine, as per CWM/Signal Workshop /Howrah /E. Rly. drawing number, S1. No., Description of Drawing & CWM/SW /HWH's Drawing No. mentioned below: - 1. Detector Rod (Far End) - BS/29/721 with ALT-1 Detector Rod (Near End)- BS/29/722 with ALT-1. 2. Lock Rod (Far End) - BS/29/723 with ALT-1, Lock Rod (Near End) BS/29/724 with ALT-1. 3. Switch Extension Bracket - BS/29/725 with ALT-1. 4. Drive Rod - BS/29/726 with ALT- 1 Drive Lug- BS/29/726 A with ALT- 1. 5. Sleeve- BS/29/726 B with ALT-1. 6. Lug- BS/29/726 C with ALT-1. 7. Pin- BS/29/726 D with ALT-1. 8. Sketch showing the Layout arrangement- BS/29/727 with ALT-1. Amdt. and alt. up to date if any. Inspection: by RITES [for value of material above Rs. 5.0 lakhs. Inspection by Consignee for value of material below than Rs 5.0 lakh] A)Turn Out | — | 20.00 | — | — | |
| — | — | — | 1,60,050 | ||
| Supply of Ground Connection [BG] Threaded Type for IRS type Point Machine, as per CWM/Signal Workshop /Howrah /E. Rly. drawing number, S1. No., Description of Drawing & CWM/SW /HWH's Drawing No. mentioned below: - 1. Detector Rod (Far End) - BS/29/721 with ALT-1 Detector Rod (Near End)- BS/29/722 with ALT-1. 2. Lock Rod (Far End) - BS/29/723 with ALT-1, Lock Rod (Near End) BS/29/724 with ALT-1. 3. Switch Extension Bracket - BS/29/725 with ALT-1. 4. Drive Rod - BS/29/726 with ALT- 1 Drive Lug- BS/29/726 A with ALT- 1. 5. Sleeve- BS/29/726 B with ALT-1. 6. Lug- BS/29/726 C with ALT-1. 7. Pin- BS/29/726 D with ALT-1. 8. Sketch showing the Layout arrangement- BS/29/727 with ALT-1. Amdt. and alt. up to date if any. Inspection: by RITES [for value of material above Rs. 5.0 lakhs. Inspection by Consignee for value of material below than Rs 5.0 lakh] B)Double Slip as per DRG No.SGW/S/2/HWH /1/92 or Latest. | — | 10.00 | — | — | |
| — | — | — | 88,128 | ||
| Supply of Digital Multimeter of Fluke 287 Industrial or Similar/ superior True RMS with temperature, Analog bar graph, Digital display, Backlight, 1000V AC/DC, measure up to 10A, 20A for up to 30 second .Item to be supplied after successful demonstration and Approval of Railway. Inspection: Consignee | — | 2.00 | — | — | |
| — | — | — | 58,579 | ||
| Supply of Cable Fault Locates to localize the faults of underground cables. Aplab make (Model No.3049} OR C Scope Stanley maize {Model TS- 90) or Similar/ superior from any reputed make. It also includes supply of all accessories required to localize faults of underground cables. Item to be supplied after successful demonstration and Approval of Railway. Inspection: Consignee | — | 1.00 | — | — | |
| — | — | — | 94,960 | ||
| "Supply of Handheld Digital Earth Clamp Tester for clamp on earth/ground resistance measurement up to 1000 ohms. Accuracy 0.1 -0.99 D: 1%, 1 - 49 D: 1.5% Also measure current leakage u p t o 20A. N o spines required for measurement Model - DECT-2 or equivalent / higher version make Motwane/ Stanlay/ Fluke/Megger. Item to be supplied after successful demonstration and Approval of Railway. Inspection: Consignee" | — | 1.00 | — | — | |
| — | — | — | 26,484 | ||
| Dismantling of Microlok rack, relay rack , cable termination rack of existing relay room and equipments of existing panel room & power room etc. | — | 4.00 | — | — | |
| — | — | — | 4,10,718 | ||
| Supply of electronic Cable route tracer/locator with underground cable and pipe locating receiver and cable avoidance tool that provide location of armoured OFC , signalling and telecom , power cable etc. make : C Scope Stanley/ 3M Dynatel , model: DXL-4 DBG /2273M-iD 30 or Similar/ superior. Item to be supplied after successful demonstration a n d Approval o f Railway. Inspection: Consignee | — | 1.00 | — | — | |
| — | — | — | 3,53,100 | ||
| Supply of unchanged Low Maintenance Lead Acid (LMLA) secondary cell, shelf mounting type conforming to RDSO Specn.No. IRS:S-88/2004 or latest with inter cell connectors, nuts and bolts etc. Inspection: RDSO. A)2V, 300AH | — | 50.00 | — | — | |
| — | — | — | 3,255 | ||
| Dismantling of location box / RCC Goomty including all its accessories & concrete foundation. | — | 5.00 | — | — | |
| — | — | — | 13,795 | ||
| Shifting/lifting of location box to facilitate earthwork of Engg/Con.This includes filling with sand and plastering inside location box. | — | 5.00 | — | — | |
| — | — | — | 3,004 | ||
| Dismantling of level crossing gates with all accessories as per site engineers. | — | 1.00 | — | — | |
| — | — | — | 24,250 | ||
| Supply of PBT ARA terminal as per IRS SPECN.NO. IRS: S-75-2006(REV-2) OR LATEST. Material to be procured from RDSO's approved fi r m only. Inspection: RDSO.A)6 WAY, DRG.NO. 23756,ALT-3. | — | 50.00 | — | — | |
| — | — | — | 14,036 | ||
| Supply of magneto telephone, desk type, spec. No IRS-TC-79/ 2000 AMDT. 1 or latest. Inspection: by consignee | — | 4.00 | — | — |
Tap a document below to read it instantly. You can also download everything as a ZIP if you prefer.
details.html
HTML
nit.pdf
NIT
CheckListAnnexItoVIIIUPDATED.pdf
ATTACHMENT
Annexure-IX.pdf
ATTACHMENT
Annexure-X.pdf
ATTACHMENT
Annexure-XI.pdf
ATTACHMENT
AnnexureV.pdf
ATTACHMENT
Annexure_VA.pdf
ATTACHMENT
Annexure-VIA.pdf
ATTACHMENT
Annexure-VIB.pdf
ATTACHMENT
GCCwithCorrectionSlips1to10.pdf
ATTACHMENT
ACS-11.pdf
ATTACHMENT
LabourCess_compressed.pdf
ATTACHMENT
VICINITYOFUNDERGROUNDCABLE-
ATTACHMENT
TermsofPayment.July-25.pdf
ATTACHMENT
Updatedtenderdocument-LHSLCgate.pdf
ATTACHMENT
OnlineBG.pdf
ATTACHMENT
NewEarthElectrodeDrawing1.pdf
ATTACHMENT
sketch-Foundation.pdf
ATTACHMENT
FoundationC-6-98.pdf
ATTACHMENT
foundationMain.pdf
ATTACHMENT
Technical Circular No 108
ATTACHMENT
EarthElectrodeC-36.pdf
ATTACHMENT
JPO-CABLEDIGGINGWORK-VICINITYOFUNDERGROUNDCABLE-SRDSTESRDEN-C-240124.pdf
ATTACHMENT
TECHNICALCIRCULARNO108-CableRouteMarkerPoli_250925_155743.pdf
ATTACHMENT
Download all tender documents and submit your bid
Disclaimer: TenderKart has made every reasonable effort to ensure that the information on this page is accurate and authentic, however it cannot be held liable for any third-party claims or losses or any damages. TenderKart makes no warranty, expressed or implied, as to the results obtained from the use of this information. If you notice any error or omission, please let us know at [email protected].