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Open Power and Energy NPROCURE

Overhauling and Maintenance of Auxiliary Transformers at Wanakbori TPS - Power Sector Tender

Bid Publish Date

15-Jun-2026, 7:00 am

Bid End Date

21-Jul-2026, 12:30 pm

Progress

Issue15-Jun-2026, 7:00 am
AwardPending
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Tender Type

Open

Sector

Power and Energy

Tender Fee

₹1,770

Contract Form

Works

Completion Period

As per tender Document Attached

Currency Type

Single

Categories 22

This government tender offers an exciting opportunity for electrical contractors specializing in transformer maintenance and power plant services. Gujarat State Electricity Corporation Limited (GSECL) invites bids for complete overhauling, oil leakages attending, gasket replacement, oil filtration, and cleaning of auxiliary transformers at Wanakbori Thermal Power Station. The project aims to enhance transformer reliability, efficiency, and safety, ensuring uninterrupted power supply. The tender is open to experienced, licensed electrical contractors with proven capabilities in similar projects. Bidders must submit technical and financial proposals through the online nProcure portal by the specified deadlines. The process includes multiple evaluation stages, emphasizing technical competence, experience, and cost competitiveness. The estimated project value ranges between Rs. [min] and Rs. [max], with a bid validity of 180 days. This opportunity is ideal for companies seeking to work with Gujarat's power sector and contribute to sustainable energy infrastructure development.

Scope Of Work

The selected contractor will be responsible for:

  • Complete overhauling of auxiliary transformers at Wanakbori TPS.
  • Attending to oil leakages and gasket replacements.
  • Oil filtration and cleaning to ensure transformer efficiency.
  • Surface preparation and painting of transformers.
  • Conducting all miscellaneous tasks as specified in the tender document.

The process includes:

  1. Receiving the work order and reviewing the detailed scope.
  2. Mobilizing skilled manpower and necessary tools.
  3. Performing inspection and initial assessment.
  4. Attending to oil leakages and replacing gaskets.
  5. Filtering and cleaning transformer oil.
  6. Painting and surface finishing.
  7. Final testing and commissioning.

Key deliverables include:

Deliverable Specification
Oil leakages attended Complete sealing of leak points
Gasket replacement Use of approved gasket materials
Oil filtration Use of standard oil filtration units
Painting Weather-resistant coating
Final report Including test results and compliance certificates

All work must conform to the technical standards specified in the tender document and adhere to safety regulations.

Technical Specifications

Transformers involved:

Parameter Specification
Power rating 2/1.6 MVA
Voltage rating 6.6/0.415 KV
Oil type Mineral oil
Gasket material As per standards
Painting Weather-resistant, corrosion-proof

Sequential procedures include:

  • Inspection and assessment
  • Oil leakage attending
  • Gasket replacement
  • Oil filtration
  • Cleaning and painting
  • Final testing and commissioning

All technical work must comply with IS standards and safety protocols.

Financial Requirements

The estimated project cost ranges from Rs. [minimum amount] to Rs. [maximum amount], inclusive of all taxes and duties. The bid submission should include a detailed cost breakdown:

Item Cost (Rs.)
Labour [amount]
Materials [amount]
Tools & tackles [amount]
Miscellaneous [amount]

Payment terms are as follows:

  • 30% advance upon award
  • 50% after completion of major tasks
  • 20% after final inspection and approval

Bidders must ensure financial stability and submit valid bank guarantees as per tender terms.

Additional Tender Data

Commercial Details

Tender Category

Service

Bid To RA

No

Item Category

Miscellaneous Works

Authority & Contact

Officer Inviting Bids

Chief Engineer [C & O], Wanakbori TPS

Bid Opening Authority

Chief Engineer [C & O], Wanakbori TPS

Address

Wanakbori Thermal Power Station, Gujarat State Electricity Corporation Limited, Ta: Galteshwar, Dist: Kheda -388239

Contact Details

[email protected] /7069003830

Authority Records

GUJARAT STATE ELECTRICITY CORPORATION LIMITED

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Documents 1

RFQ-76323 EMD-5.pdf

TENDER_DOCUMENT

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Eligibility Criteria

✓ Must have valid electrical contractor license and necessary certifications.
✓ Proven experience in transformer overhauling and maintenance.
✓ Submit experience certificates of similar completed projects.
✓ Demonstrate financial stability with relevant documents.
✓ Provide details of PF Code No., GST Registration, I.T. No., and PAN.
✓ Submit list of tools & tackles as per tender requirements.
✓ Must be registered on GUVNL VMS portal.
✓ Submit all required forms, including integrity pact and undertakings.
✓ Provide copy of electrical contractor license.

Qualification Parameter Minimum Requirement
Experience in similar work At least 3 completed projects in transformer maintenance
Financial turnover Rs. [specified amount] in last 3 years
Certifications Valid electrical contractor license, GST, PAN
Technical capacity Adequate tools, skilled manpower, safety measures

Bidders must meet all the eligibility criteria to qualify for technical evaluation.

Bidding Process

Process Timeline

1. Preliminary stage

22-07-2026 15:00

2. Technical Stage

22-07-2026 15:30

3. Commercial Stage

Required Forms

Preliminary

Tender fee details –WTPS

User Defined Template-Standard

Required

EMD DETAIL

User Defined Template-Secured

Required

Technical

Technical Bid

User Defined Template-Standard

Required

Commercial

Price Bid Form

Library-Secured

Required

Required Documents

Stage - Preliminary stage

1

Attach Scanned copy of Tender fee and EMD details.

Required

Stage - Technical Stage

1

Experience certificate of similar work & copy of past orders executed for similar type of work.(as mentioned in tender document)

Required
2

Must be submit financial qualification criteria (As mentioned in tender document).

Required
3

Details of PF Code No.

Required
4

Copy of GST Registration No., I.T. No. & PAN Card No.

Required
5

List of tools & tackles (as mentioned in tender document)

6

Attach scanned copy of technical bid with all relevants documents.

Required
7

Authentication of veracity of documents submitted in support of Meeting the Qualifying Requirements. (As mentioned in tender document).

Required
8

Form for Declaration for Conflict of Interest among BIDDERS/AGENTS. (As mentioned in tender document).

Required
9

Form for Declaration for Relationship of BIDDER With Employee (As mentioned in tender document).

Required
10

Bidder must be registered in GUVNL VMS portal. (As mentioned in tender document).

Required
11

Bidder must be submit form no.1 to 6 including integrity pact with duly sign & stamp.

Required
12

Bidder must be submit UNDERTAKING IN REGARD TO QUOTED PRICE(As mentioned in tender document).

Required
13

Bidder Must Attach Copy of Electrical Contractor License (as mentioned in tender document)

Form - Technical Bid

1

Attach scan copy of Tender documents

Frequently Asked Questions

Key insights about GUJARAT tender market

What is the scope of work for this tender?

The scope includes overhauling, oil leakages attending, gasket replacement, oil filtration, cleaning, painting, and miscellaneous tasks for 2/1.6 MVA, 6.6/0.415 KV auxiliary transformers at Wanakbori TPS. The contractor must ensure all tasks meet specified standards and safety protocols.

What are the eligibility criteria for bidders?

Bidders must possess a valid electrical contractor license, demonstrate experience in transformer maintenance, submit financial and technical documents, and be registered on the GUVNL VMS portal. All required certificates and experience proofs must be provided as per tender guidelines.

How can I participate in the bidding process?

Register on the nProcure portal, download the tender documents, pay the tender fee and EMD, and submit all required technical and financial documents before the deadline. Attend the bid opening scheduled on 07-07-2026 at 3:30 PM. Ensure compliance with all submission instructions.

What is the estimated value of this project?

The estimated project value ranges from Rs. [minimum amount] to Rs. [maximum amount], inclusive of all taxes. The detailed cost breakdown is provided in the tender documents, and bidders should prepare competitive bids accordingly.

Who can I contact for support or clarifications?

For assistance, contact Chief Engineer [C & O], Wanakbori TPS via email at [email protected] or call 7069003830. Support is available during working hours, and training sessions are organized weekly at (n)code solutions, Ahmedabad.

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