Sarusajai Grid Substation Conversion: 220kV AIS to GIS with 400kV Future Upgradation

The Assam Electricity Grid Corporation Ltd (AEGCL), through its Chief General Manager (PPnD), invites qualified bidders to participate in an open tender for the comprehensive Turnkey Conversion of the existing 220/132/33kV AIS (Air Insulated Substation) to a state-of-the-art 220kV GIS (Gas Insulated Substation) at Sarusajai Grid Substation, Assam. This significant project, valued at approximately ₹4,55,89,89,843, includes the installation of transformation capacity of 220/132kV, 4x200MVA, and 132/33kV, 3x80MVA, along with associated transmission lines. A crucial aspect of this tender is the provision for future upgradation to a 400 kV Substation, underscoring the long-term strategic vision of AEGCL. The tender, identified by Tender Reference Number AEGCL/MD/Tech-1230/Sarusajai GSS Upg/2026/BID and Tender ID 2026_AEGCL_53560_1, specifies a contract form of Turn-key and requires a two-cover bid submission. The project has a stipulated completion period of 730 days. Key critical dates for participation include the document download start date of August 24, 2026, at 10:00 AM, with the download end date set for September 28, 2026, at 12:00 PM. Bid submission is open from September 23, 2026, at 9:00 AM, concluding on September 28, 2026, at 12:00 PM. The bid opening is scheduled for September 29, 2026, at 02:00 PM. A tender fee of ₹5,000 is applicable, and an Earnest Money Deposit (EMD) of ₹7,50,00,000 is required, with provisions for EMD through BG/ST. Potential bidders are encouraged to attend the pre-bid meeting scheduled for September 8, 2026, at 12:00 PM at the Conference Hall, O/o the MD, AEGCL, 1st Floor, Bijulee Bhawan, Paltan Bazar, Guwahati-781001. All pertinent tender documents, including the Notice Inviting Tender (NIT) and detailed bid volumes, are available for download and review.