[Supply, transport, erection, testing, commissioning of 400 KV DC line (24 KM) with QUAD MOOSE ACSR conductor from the proposed Samugarengapuram 400/230-110 KV substation to the Kudankulam Nuclear Power Plant (KKNPP) units 3 and 4 in WZ - 2 ] open

TNEB Limited

Ref: T-65 · ID: 2026_EB_649408_1

Category Civil Works

AI summary

This tender provides details about the project including scope of work, estimated value, deadlines, and eligibility requirements.

Overview

This tender is issued by TNEB Limited for the supply, transport, erection, testing, and commissioning of a 400 KV DC line (24 KM) with QUAD MOOSE ACSR conductor from the proposed Samugarengapuram 400/230-110 KV substation to the Kudankulam Nuclear Power Plant (KKNPP) units 3 and 4. The tender is categorized as an Open Tender and follows a Turn-key contract format.

Scope / Work

The work involves comprehensive tasks including supply, transport, erection, testing, and commissioning of the specified DC line. Bidders are required to refer to the tender documents for detailed pre-qualification criteria. The location of the project is Samugarengapuram, with the relevant pincode being 627112. A pre-bid meeting is scheduled for 06-Feb-2026 at 11:30 AM in Chennai, which is crucial for bidders to clarify any doubts regarding the tender.

Fees & EMD

There is no tender fee associated with this tender. However, an Earnest Money Deposit (EMD) of ₹10,230,000 is required, with exemptions allowed under certain conditions. Bidders must ensure that the EMD is submitted as a fixed amount. Payment for the EMD can be made online through SBI Bank.

Key dates

  • Tender Published: 31-Jan-2026 02:00 PM
  • Document Download Start: 31-Jan-2026 02:00 PM
  • Document Download End: 16-Apr-2026 02:00 PM
  • Clarification Period: 02-Feb-2026 11:00 AM to 09-Feb-2026 05:00 PM
  • Bid Submission Start: 13-Feb-2026 03:00 PM
  • Bid Submission End: 16-Apr-2026 02:00 PM
  • Bid Opening Date: 17-Apr-2026 03:00 PM

Bidders should be mindful of the timelines and ensure all submissions are completed before the deadlines.

AI insights

Risk factors

  • High EMD size
  • Bid validity of 180 days
  • Tight timelines for submission
  • No general technical evaluation allowed

Financials

Tender value Undisclosed
EMD amount ₹1,02,30,000 — payable to Nil at Nil
Tender fee ₹0.00 — payable to Nil at Nil

Payment mode Online

Timeline

Publish date 31-Jan-2026 02:00 PM
Bid end 16-Apr-2026 02:00 PM
Opening date 17-Apr-2026 03:00 PM

Documents available from 31-Jan-2026 02:00 PM to 16-Apr-2026 02:00 PM. Clarification window: 02-Feb-2026 11:00 AM to 09-Feb-2026 05:00 PM.

Tender Documents

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Name Size Type Action
BOQ_778564.xls 538.5 KB XLS
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TenderSpecT65.pdf 2.09 MB PDF
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CorrigendumV.pdf 280.02 KB PDF
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CorrigendumIV.pdf 61.32 KB PDF
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CorrigendumIII.pdf 60.98 KB PDF
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CorrigendumII.pdf 302.79 KB PDF
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CorrigendumI.pdf 89.9 KB PDF
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Corrigenda

Official amendments and notices. PDFs open in the same viewer as tender documents (sign in, verified email, daily limit applies).

Corrigendum V

Type Date

Published Corrigendum Details Date : 12-Apr-2026 12:22 AM [Tender information] Organisation Chain : TNEB Limited||TANTRANSCO||CE-Civil-Transmission - TANTRANSCO Tender ID : 2026_EB_649408_1 Tender Ref No : T-65 Tender Title : Supply, transport, erection, testing, commissioning of 400 KV DC line (24 KM) with QUAD MOOSE ACSR conductor from the proposed Samugarengapuram 400/230-110 KV substation to the Kudankulam Nuclear Power Plant (KKNPP) units 3 and 4 in WZ - 2 Corrigendum Type : Date [Corrigendum:4] Corrigendum title: Corrigendum V Description: Bid Opening Date Extension Published: 02-Apr-2026 12:47 PM Document: CorrigendumV.pdf Size (KB): 280.02 Publish Date: 31-Jan-2026 02:00 PM │ Bid Opening Date: 17-Apr-2026 03:00 PM Document Download/Sale Start Date: 31-Jan-2026 02:00 PM │ Document Download/Sale End Date: 16-Apr-2026 02:00 PM Clarification Start Date: 02-Feb-2026 11:00 AM │ Clarification End Date: 09-Feb-2026 05:00 PM Bid Submission Start Date: 13-Feb-2026 03:00 PM │ Bid Submission End Date: 16-Apr-2026 02:00 PM Pre Bid Meeting Date: 06-Feb-2026 11:30 AM [Critical Dates] [Corrigendum:3] Publish Date: 31-Jan-2026 02:00 PM │ Bid Opening Date: 02-Apr-2026 03:00 PM Document Download/Sale Start Date: 31-Jan-2026 02:00 PM │ Document Download/Sale End Date: 01-Apr-2026 02:00 PM Clarification Start Date: 02-Feb-2026 11:00 AM │ Clarification End Date: 09-Feb-2026 05:00 PM Bid Submission Start Date: 13-Feb-2026 03:00 PM │ Bid Submission End Date: 01-Apr-2026 02:00 PM Pre Bid Meeting Date: 06-Feb-2026 11:30 AM [Critical Dates] [Corrigendum:2] Publish Date: 31-Jan-2026 02:00 PM │ Bid Opening Date: 17-Mar-2026 03:00 PM Document Download/Sale Start Date: 31-Jan-2026 02:00 PM │ Document Download/Sale End Date: 16-Mar-2026 02:00 PM Clarification Start Date: 02-Feb-2026 11:00 AM │ Clarification End Date: 09-Feb-2026 05:00 PM Bid Submission Start Date: 13-Feb-2026 03:00 PM │ Bid Submission End Date: 16-Mar-2026 02:00 PM Pre Bid Meeting Date: 06-Feb-2026 11:30 AM [Critical Dates] [Corrigendum:1] Publish Date: 31-Jan-2026 02:00 PM │ Bid Opening Date: 05-Mar-2026 03:00 PM Document Download/Sale Start Date: 31-Jan-2026 02:00 PM │ Document Download/Sale End Date: 04-Mar-2026 02:00 PM Clarification Start Date: 02-Feb-2026 11:00 AM │ Clarification End Date: 09-Feb-2026 05:00 PM Bid Submission Start Date: 13-Feb-2026 03:00 PM │ Bid Submission End Date: 04-Mar-2026 02:00 PM Pre Bid Meeting Date: 06-Feb-2026 11:30 AM [Critical Dates] [Details Before Corrigendum] Publish Date: 31-Jan-2026 02:00 PM │ Bid Opening Date: 18-Feb-2026 03:00 PM Document Download/Sale Start Date: 31-Jan-2026 02:00 PM │ Document Download/Sale End Date: 17-Feb-2026 02:00 PM Clarification Start Date: 02-Feb-2026 11:00 AM │ Clarification End Date: 09-Feb-2026 05:00 PM Bid Submission Start Date: 13-Feb-2026 03:00 PM │ Bid Submission End Date: 17-Feb-2026 02:00 PM Pre Bid Meeting Date: 06-Feb-2026 11:30 AM [Critical Dates]
File Size Type Action
CorrigendumV.pdf 280.02 PDF
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CorrigendumIV.pdf 61.32 PDF
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CorrigendumIII.pdf 60.98 PDF
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CorrigendumII.pdf 302.79 PDF
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Reply to Pre-Bid Queries

Type Technical Bid

Published Corrigendum Details Date : 12-Apr-2026 12:22 AM [Tender information] Organisation Chain : TNEB Limited||TANTRANSCO||CE-Civil-Transmission - TANTRANSCO Tender ID : 2026_EB_649408_1 Tender Ref No : T-65 Tender Title : Supply, transport, erection, testing, commissioning of 400 KV DC line (24 KM) with QUAD MOOSE ACSR conductor from the proposed Samugarengapuram 400/230-110 KV substation to the Kudankulam Nuclear Power Plant (KKNPP) units 3 and 4 in WZ - 2 Corrigendum Type : Technical Bid [Corrigendum Document Details]
File Size Type Action
CorrigendumI.pdf 89.9 PDF
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Work details

Location, category, and schedule for this procurement.

Location Samugarengapuram
Category Civil Works
Bid validity 180 days

Tender basics

Tender type Open Tender
Form of contract Turn-key
Tender category Works
No. of covers 2
Organisation chain TNEB Limited||TANTRANSCO||CE-Civil-Transmission - TANTRANSCO
Source portal tntenders.gov.in

Authority details

Inviting authority Chief Engineer/Civil/ Transmission, Chennai
Address The Chief Engineer/Civil/ Transmission, Tamil Nadu Transmission Corporation Limited, 4th Floor, Northern Wing, TANTRANSCO Building, 144, Anna Salai, Chennai - 600 002.
Payment instruments Online

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