Tamil Nadu Electricity Board Limited Tender

Work Description - Upgradation Of Existing 33/11kv Ss Into 110/33-11kv Ss At Naidumangalam With 1x16 Mva, 110/33kv Power Transformers And 2x10 Mva, 110/11kv Power Transformers

TNEB Limited, a State Government and UT organization, invites open tenders for the work of upgrading an existing 33/11kV Substation into a 110/33-11kV Substation at Naidumangalam, involving the installation of 1x16 MVA, 110/33kV Power Transformers and 2x10 MVA, 110/11kV Power Transformers. The Tender Reference Number for this project is TP1-145/2025-26 OF CE/TP-I/CNI, and the Tender ID is 2026_EB_643630_1. Interested bidders can download the tender documents from January 14, 2026, at 09:05 AM until January 28, 2026, at 02:30 PM. The deadline for bid submission is January 28, 2026, at 02:30 PM, with the bid opening scheduled for January 29, 2026, at 02:30 PM. A fixed Earnest Money Deposit (EMD) of ₹1,66,000 is required, with online payment as the mode. Bids must remain valid for 180 days, and the estimated period of work is 270 days. The tender is a two-cover system, with Cover 1 containing the Fee/PreQual/Technical details (NIT document) and Cover 2 containing the Finance details (BOQ document). The tender is invited by CE/TP-I/CNI, located at O/o the Chief Engineer/Transmission Projects I / Chennai, 3rd Floor, 110 KV GIS Substation building A-10, Guindy Industrial Estate, Guindy, Chennai -32, Pincode 600032.