This tender invites bids for the supply of SERGI system spares specifically designed for 220KV transformers, units 03 to 06, at Mangla Power Station in Punjab. The Pakistan Water and Power Development Authority (WAPDA) requires original manufacturers, authorized distributors, suppliers, or contractors registered with Income Tax and Sales Tax Departments and active on the FBR's Active Taxpayer List (ATL) to participate. The scope covers high-quality electrical spares essential for maintaining the operational efficiency and reliability of the power station's transformers, a critical component in the national grid. The procurement involves sourcing components on an FOB basis, ensuring compliance with technical specifications and standards suitable for the power station's infrastructure. Mangla's strategic location and the engineering challenges of maintaining high-voltage equipment demand precise and reliable parts to avoid downtime and ensure continuous power supply. Bidders must be familiar with the technical requirements and the operational environment of hydroelectric power facilities. Participants should ensure their PEC registration aligns with the relevant category for electrical equipment supply and maintain valid FBR/ATL status for the fiscal year 2025-26. It is advisable to review all compliance documents carefully, including Earnest Money requirements and bid security in the form of Call Deposit Receipt (CDR), Bank Guarantee, or Pay Order payable to the Resident Engineer, Power Station Mangla. The submission deadline is set for 09 April 2026 at 11:30 AM, with electronic bids to be submitted exclusively via the EPADS portal (www.eprocure.gov.pk). Bid opening will occur the same day at 12:00 PM in the office of the Resident Engineer, Mangla Power Station. Manual bids will not be accepted, and the Single Stage One Envelope procedure will be followed. Pro-Tip: Ensure your bid security reaches the Resident Engineer's office before the closing time to avoid disqualification. Also, verify the latest updates on EPADS and WAPDA websites for any addenda or clarifications issued before the deadline.