630 kVA 11 kV/415 V Unit Auxiliary Transformer

Publication date

Bid published/dated 18-07-2026; Corrigendum 1 dated 21-07-2026.

• No further date extensions after Corrigendum 1.

Bid submission deadline

Bid End Date/Time: 17-08-2026 16:00:00.

• Unchanged by corrigendum.
• Auto-extension: if fewer than 3 bids, bid end may auto-extend by 7 days, maximum 1 auto-extension.

Bid opening

Bid Opening Date/Time: 17-08-2026 16:30:00.

• Two Packet Bid; technical clarifications during evaluation allowed within 3 Days.

Bid offer validity

Bid Offer Validity is 90 days from Bid End Date; ATC also invites bids with 90 days validity and requires EMD validity of 90 days from bid opening.

• GeM bid field: 90 (Days) from End Date.
• ATC: invites bids with 90 days validity; EMD validity 90 days from bid opening date.

Pre-bid / clarification deadline

No pre-bid meeting date or pre-bid query deadline is specified in the tender documents.

• Technical clarifications during technical evaluation are allowed for 3 days after evaluation queries.
• Buyer emails for technical clarification are provided in ATC (see Contacts).

Post-award drawing and delivery timelines

Drawings due within 21 days of GeM Order; supply/delivery of assembled UAT within 120 days from EIC drawing approval. GeM item also shows Delivery Days: 120.

• See contradictions for GeM 120-day delivery field vs ATC drawing-linked 120 days.
• Inspection notice: at least 15 days advance notice before works inspection/dispatch.

Estimated / tender value

No explicit estimated bid value/tender value is stated; experience/turnover thresholds imply a working value around Rs. 29.07 lakh but that figure is not printed as estimated cost.

• ATC MAAT: Rs. 14,53,388.00; single similar supply threshold Rs. 23,25,420.00; EMD Rs. 58,140.00 (2% of Rs. 29,07,000).
• Do not treat reverse-engineered estimate as a published tender value.

EMD / bid security

EMD is Rs. 58,140; Advisory Bank State Bank of India; validity 90 days from bid opening; system-generated e-receipt must be uploaded; surety bond also acceptable under GeM bid text.

• Beneficiary: Sr Manager (E/M), NEEPCO KHEP ... (Amrit Kumar Borah); UIN NCTGC2415P.
• ATC payment route: SBI SB-Collect, Payment Category “KHEP- PARTIES”, Bank SBI KHEPA Branch, IFSC SBIN0004812; upload system-generated e-receipt on portal.
• MSE exemption: only MSE manufacturers of the primary product (Transformer) with valid Udyam/MSE certificate; authorized dealers and traders are not exempted (ATC). GeM bid also excludes traders from MSE EMD exemption.
• Forfeiture if bid withdrawn/modified during validity; failure to submit Performance Guarantee; violation of bid terms; or false/misleading information.
• No separate tender/bid document fee is provided for this GeM bid.

Performance security (e-PBG)

e-PBG 5.00% of contract value for 21 months; Advisory Bank SBI; ATC requires e-PBG from any Nationalized/Scheduled Commercial Bank in India prior to supply, released 3 months after warranty expiry.

• GeM GTC: Performance Security generally within 15 days of award; payments become due only after receipt/verification of Performance Security.
• ATC warranty 18 months from dispatch + 3 months release lag aligns with 21-month ePBG duration.
• In favour of Beneficiary wherever applicable (same beneficiary framework as EMD).

Price basis, taxes and payment terms

Firm prices for entire scope; quote to include GST, P&F, freight, insurance, storage etc.; 100% payment with GST after full good-condition receipt at site (no part payment); Buyer payment timeline 45 days from CRAC and online bills.

• No price variation clause.
• GST reimbursement as actuals or applicable rates, whichever lower, subject to max quoted GST %.
• NEEPCO GSTIN: 18AAACN9991J2ZQ.
• TReDS is preferred payment mode for MSME sellers registered on a TReDS exchange where buyer is registered.
• Evaluation: Total value wise evaluation.

Bidder type and OEM/dealer status

Only reputed OEM or authorized dealer of OEM; single legal entity only — JV/consortium/MoU collaboration bids are rejected.

• Authorized dealers must submit valid dealership/authorization with OEM name, designation, address, phone and email.
• Forged/invalid/misleading authorization leads to rejection and further GeM/tender action.
• Products must be genuine, new, unused OEM products complying with applicable BIS/ISO/IEC standards.

Specific past supply experience (ATC)

Must have supplied at least one 630 kVA or above, 11 kV/415V indoor dry-type cast resin UAT to Central/State Govt or PSU in last 7 years ending March 2026 (prior to bid opening), meeting value thresholds.

• Either: 3 similar supplies each ≥ Rs. 11,62,710.00; OR 2 each ≥ Rs. 14,53,388.00; OR 1 ≥ Rs. 23,25,420.00.
• Documentary evidence plus successful completion certificate from the buyer required.
• Purchaser may verify certificates directly with OEM/issuing authority.

GeM experience, past performance and turnover filters

GeM bid requires 2 years past experience for same/similar category, Past Performance 50% of bid quantity in at least one of last three FYs to Govt/PSU, bidder MAAT 14 Lakh (ATC exact Rs. 14,53,388), and OEM average turnover 14 Lakh.

• MSE / Startup partial relaxation on GeM: Experience 1 year; Turnover 7 lakhs (and OEM turnover relaxation if bidder is MSE/Startup OEM).
• ATC states experience and turnover criteria for MSEs shall be as per the GeM bid document.
• Turnover eligibility criteria: to be verified by buyer at technical evaluation.
• See contradictions for GeM 2-year generic experience vs ATC 7-year specific UAT experience.

Make in India / local supplier eligibility

Only Class-I and Class-II local suppliers may participate (Non-Local not eligible, subject to concurrent MSE rules); MII purchase preference Yes with L1+20% band up to 50% quantity; minimum local content Class-1 50% / Class-2 20%.

• Bidder must submit self-certification of local content % and supplier class (ATC); for purchase preference, OEM local-content certificate with value-addition locations required (GeM bid).
• MSE purchase preference Yes: L1+15% band for 25% quantity if manufacturer/OEM of offered product; traders excluded.

Debarment, financial standing and land-border restrictions

Bidder/OEM must not be under liquidation, blacklisted or debarred by any Government/PSU; not bankrupt/under court receivership; land-border bidders need Competent Authority registration (GeM GTC cl.26).

• Upload undertaking on financial standing with bid.
• Corrupt/fraudulent practices: bid rejected and Bid Security/Performance Guarantee forfeited.
• Brand restriction removed by Corrigendum 1 — any reputed make/brand compliant with tech specs may be quoted.

Item being procured

One number 630 kVA, 11 kV/415 V indoor dry-type cast resin Unit Auxiliary Transformer with fittings and accessories for 2×23 MW Khandong Power Station, KHPS, NEEPCO, Umrangso, Dima Hasao, Assam-788931.

• ATC full scope wording: DESIGN, ENGINEERING, MANUFACTURING, SUPPLY, DELIVERY, TYPE TEST AT WORKS.
• GeM Buyer ATC also states scope of supply (bid price to include all cost components): Only supply of Goods — see contradictions.
• Quantity: 1 set/No.; option clause ±25% quantity at contract placement and +25% during currency at contracted rates.

Technical parameters and standards

Buyer technical data sheet specifies cast resin indoor dry-type UAT to IEC 60076-11 / IS 2026 (Part 11), Dyn11, copper windings, AN cooling, Class F, 5% impedance, off-circuit taps +5% to -5% @ 2.5%, with fittings/accessories as in drawings.

• Primary 11000 V / Secondary shown as 433 V on data sheet (bid title uses 415 V).
• Data sheet lists Name of Manufacturer as Kalpa Electrikal Pvt Ltd, Bengaluru — corrigendum allows any reputed compliant make/brand.
• Key values include no-load loss 1.50 kW, load loss 7.00 kW, total loss 8.50 kW, noise 62 dBA, approx. dimensions 2000×1550×2225 mm, total weight ~3300 kg, enclosure IP-23/IP-31, RAL 7035.
• Neutral Bushing CT details, busduct/terminal arrangements and foundation/marshalling drawings form part of the uploaded tech pack (pages 4–12 drawings).

Delivery location, logistics and associated seller obligations

Delivery to Khandong Power Station / Kopili HPS, NEEPCO Ltd, Umrongso, Dima Hasao, Assam 788931; seller scope includes packing/forwarding, transit insurance to site, type-test certificates, O&M manual, and warranty support.

• Consignee/Reporting Officer on GeM: Pranab Kumar Choudhury, Administrative Building, KHEP, NEEPCO Ltd, 788931.
• ATC Consignee of materials: Sr. Manager (E/M), Central Store Division, KHPS.
• Insurance to cover replacement/reinstatement cost from manufacturer’s works to project site.
• Works inspection/testing by NEEPCO or authorised representative before dispatch (may be inspected).
• Warranty: at least 18 calendar months from dispatch; replaced/rectified portion warranted 12 months from replacement/rectification; comprehensive preventive maintenance during warranty at no extra cost.

Submission portal and mode

Online submission on GeM portal as a Two Packet Bid; participation construed as acceptance of GeM terms; corrigenda uploaded on GeM.

• No physical bid-envelope structure or offline bid submission deadline is prescribed in these documents.
• EMD e-receipt (or exemption proof) to be uploaded on the portal.
• GeM uses e-sign at par with digital signatures (Aadhaar-based) for portal documents.

Signing / compliance of tender set

Bidder must upload signed copy of bid document and ATC for compliance, plus signed technical specification sheet with clause-by-clause compliance; deviations = technical non-responsiveness.

• Bids without listed documents/credentials are liable to be rejected.

Corrigendum 1 (GEM/2026/B/7805947-C1) dated 21-07-2026 — supersession of Buyer ATC set

Corrigendum restates Buyer Added Bid Specific Additional Terms and Conditions and states they supersede all existing buyer-added bid-specific terms in the bid document or any previous corrigendum.

• Reaffirms option clause ±25%, delivery address Khandong/KHPS Umrongso, financial standing undertaking, GST caution, Vendor Code Creation docs (PAN/GSTIN/Cancelled Cheque/EFT Mandate), Manufacturer Authorization, termination grounds, and Scope: Only supply of Goods.
• Points bidders to Buyer uploaded ATC document (amended ATC Word file).

Corrigendum 1 ATC attachment — brand/make restriction withdrawn

Specific make/brand in tender documents was included inadvertently; bidders may quote any reputed make/brand if fully compliant with technical specifications and other terms. All other terms remain unchanged.

• Original tech data sheet named “Kalpa Electrikal Pvt Ltd, Bengaluru” as manufacturer.
• Original ATC Word file had no separate brand corrigendum paragraph; amended ATC inserts this corrigendum note at the top.
• No change to bid end/opening dates, EMD amount, ePBG %, quantity, or experience thresholds.

Values that finally apply after Corrigendum 1

Bid End 17-08-2026 16:00; Opening 17-08-2026 16:30; validity 90 days; EMD Rs. 58,140; ePBG 5%/21 months; any reputed compliant make/brand allowed; full ATC commercial/technical conditions otherwise unchanged.

• Delivery address: Khandong PS / KHPS, NEEPCO, Umrongso, Dima Hasao, Assam 788931.
• Use amended ATC (corrigendum Word file) together with GeM bid document and tech specs, reading brand field as non-restrictive.

Delivery period clock: GeM 120 days vs ATC drawing-linked 120 days

GeM bid shows Delivery Days 120 for the consignee line, while ATC requires drawings in 21 days from GeM Order and supply within 120 days from EIC drawing approval — a longer overall schedule if both are read literally.

• ATC says in conflict with GeM GTC, ATC prevails; it does not expressly say ATC prevails over the GeM bid Delivery Days field.
• Bidder should confirm whether GeM LD/delivery clock starts from order date (120 days) or from drawing approval.
• Prevailing practical reading to seek written confirmation: ATC detailed timeline governs performance obligations; GeM field still shows 120 days.

Scope wording: Only supply of Goods vs design/type-test/warranty services in ATC

Buyer Added clause states scope is Only supply of Goods, but ATC title and body require design, engineering, manufacturing, type test at works, O&M manual and free preventive maintenance during warranty.

• Corrigendum 1 repeats “Only supply of Goods”.
• ATC remains the detailed employer requirement set and still imposes those non-supply obligations.
• Price is to include all cost components / incidentals under ATC.

Secondary voltage 415 V (bid/ATC) vs 433 V (tech data sheet)

Bid/ATC describe 11 kV/415 V UAT, while the technical data sheet rates secondary at 433 V.

• 433 V is often no-load secondary for 415 V systems, but documents do not reconcile the wording.
• Clause-by-clause compliance is mandatory against Technical Specifications — clarify which voltage is the acceptance basis.

Experience criteria: GeM 2-year similar category vs ATC 7-year specific UAT value thresholds

GeM filter requires 2 years manufacture/supply of same/similar category products, while ATC requires specific 630 kVA+ dry-type cast resin UAT supplies in last 7 years with stated value bands.

• Both document sets ask for supporting contracts/completion evidence.
• ATC is more specific on product and values; GeM also imposes Past Performance 50% quantity in one of last 3 FYs.
• GeM disclaimer warns against ATC contravening bid detail experience sections unless allowed by GTC — treat both as needing simultaneous satisfaction unless buyer clarifies.

LD cap under ATC vs GeM GTC default

ATC caps LD at 0.5%/week of total contract value up to 10%; GeM GTC defaults to 0.5%/week of delayed quantity up to 5%, or 10% only for inordinate delay.

• ATC conflict rule: ATC prevails over GeM GTC.
• Therefore ATC 10% ceiling on total contract value is the stricter commercial risk to price.

Manufacturer name frozen on tech sheet vs brand freedom in corrigendum

Tech specification data sheet still prints Kalpa Electrikal Pvt Ltd as manufacturer, while Corrigendum 1 ATC says specific make/brand was inadvertent and any reputed compliant brand may be quoted.

• Corrigendum expressly overrides brand restriction; data-sheet values remain the compliance benchmark unless amended.
• Offer must still meet clause-by-clause technical compliance with offered make/model GTP.

Bidder MAAT 14 Lakh (GeM) vs Rs. 14,53,388 (ATC)

GeM bid field states bidder minimum average annual turnover 14 Lakh; ATC states Rs. 14,53,388.00 for last three FYs ending 31 March 2026.

• Figures are near-equivalent; ATC is the exact rupee amount used in qualification math.
• Use ATC exact threshold for bid preparation.

Confirm controlling delivery schedule and LD trigger date

Ask buyer to confirm whether contractual delivery/LD is measured as 120 days from GeM order (bid field) or 120 days from drawing approval after 21-day drawing submission (ATC).

• Material to manufacturing planning, GeM system delivery date and LD exposure.

Which technical data-sheet parameters are mandatory for non-Kalpa makes?

Since brand is opened to any reputed make, seek confirmation whether every numerical parameter on the Kalpa data sheet (losses, impedance, dimensions, weight, CT details, IP class, etc.) is a mandatory guarantee or only a reference design.

• ATC treats any deviation from Technical Specifications as technical non-responsive.

Reconcile 415 V vs 433 V secondary rating

Request written confirmation of required secondary rated voltage and system voltage basis for GTP and type tests.

Whether GeM 2-year/50% past-performance filters are additional to ATC UAT value criteria

Seek confirmation that bidders must simultaneously meet ATC 7-year specific UAT value thresholds and GeM 2-year similar-category + 50% past-performance filters (and how MSE partial relaxations interact with ATC thresholds).

• ATC says MSE experience/turnover criteria follow GeM bid document, but ATC UAT-specific experience is not expressly relaxed.

EMD instrument path — SB-Collect only or GeM/surety bond also acceptable?

ATC mandates SB-Collect e-receipt upload; GeM bid also mentions surety bond and standard GeM EMD exemption mechanics. Confirm acceptable instruments and beneficiary details for non-SB-Collect forms.

Scope of installation/commissioning and on-site preventive maintenance logistics

Buyer ATC says Only supply of Goods and inspection at works may be done, yet warranty includes free comprehensive preventive maintenance — clarify whether any site installation/commissioning is excluded and what on-site PM visits are expected at remote Umrongso.

• Affects pricing of remote Assam hydro site support.

Liquidated damages and tight multi-stage delivery

LD at 0.5% of total contract value per week of delay, capped at 10%; drawing approval gate can compress manufacturing time if GeM still enforces 120-day order clock.

• Delivery period is essence of contract under GeM GTC.
• Option clause can add quantity with proportional extra time (min 30 days).

Payment only after full receipt; e-PBG before supply

No part payment; 100% after entire materials received in good condition; e-PBG required prior to supply (and GeM payments due only after PS verification), creating working-capital lock until remote-site acceptance.

• Buyer payment timeline up to 45 days from CRAC.
• Site is Umrongso, Dima Hasao — logistics/acceptance delays are on seller until CRAC.

Broad termination, risk-and-cost and warranty burdens

Buyer may terminate for wide Seller default grounds; breach allows risk-and-cost repurchase; warranty 18 months from dispatch with free PM and extended warranty on replaced parts; defects not remedied in reasonable time may be rectified at contractor’s risk and expense.

• Purchaser may also terminate for convenience with 15 days’ notice and equitable compensation as decided by Purchaser.
• Limitation of liability generally capped at contract price, excluding repair/replace of defective equipment and IP indemnity; LD obligations excluded from consequential-loss carve-out.

Qualification and compliance rejection risk

Very specific dry-type cast resin UAT experience with value thresholds, no JV, mandatory clause-by-clause tech compliance, and document-completeness rejection make technical disqualification a high bid risk.

• Remote verification of certificates from OEM/issuing authority allowed.
• False authorization/documents attract rejection and GeM action; corrupt/fraudulent practice forfeits securities.

Firm price including freight/insurance to remote NE site; GST risk on bidder

Firm all-inclusive prices with no PVC; bidder bears GST determination risk; reimbursement capped at lower of actual/applicable and quoted GST%.

• Transit insurance to project site is seller’s scope.

Dispute forum and governing law

Arbitration under Arbitration and Conciliation Act 1996; jurisdiction of Meghalaya High Court, Shillong/Guwahati — away from many OEM manufacturing locations.

• GeM bid lists Arbitration Clause: No at bid-detail level, but ATC contains a full arbitration clause — another inconsistency increasing dispute-path uncertainty.

Inviting authority / C&P wing

North Eastern Electric Power Corporation Limited, Kopili Hydro Power Station, Contracts and Procurement Wing, Umrongso, Dima-Hasao, Assam-788931.

• Email: [email protected]; Contact: 8218227928.
• Website: www.neepco.co.in; CIN: U40101ML1976GOI001658.
• Office name on GeM: Neepco Khep.
• ATC signed by Sr. Manager(E), C&P, KHPS, NEEPCO Ltd.

GeM buyer / grievance contacts

Buyer email [email protected]; HOD grievance email [email protected].

Engineer-in-Charge and technical clarification

EIC: DGM(Tech.), In-Charge, Khandong P.S., KHPS, NEEPCO Ltd., Umrongso, Dima-Hasao, Assam-788931; Contact 9365457509, [email protected].

• Technical clarification: 8416016672, [email protected].
• Drawing submissions to both EIC technical emails.

Consignee, paying authority and GeM reporting officer

Materials consignee: Sr. Manager (E/M), Central Store Division, KHPS (Phone 7628808126). Paying Authority: HOF(Finance), KHPS. GeM Consignee/Reporting Officer: Pranab Kumar Choudhury, Administrative Building, KHEP, NEEPCO Ltd, 788931.

• No separate physical bid-submission address is prescribed; bid is on GeM.
• EMD beneficiary on GeM: Sr Manager (E/M), NEEPCO KHEP (Amrit Kumar Borah).