This tender invites qualified contractors to undertake extensive rehabilitation and improvement works for water supply systems and pumping stations across District Malir, Karachi. The projects include replacement of contaminated water lines with high-density polyethylene pipes, construction of masonry chambers, road restoration, and installation of advanced pumping equipment at multiple sites including Khokhrapar #4, Khuldabad, and Adam Hingora Goth. The scope covers excavation in various soil types, laying and testing of pipes, installation of sluice valves, and erection of pumping sets with associated electrical and mechanical works. The works demand technical expertise in civil and electrical engineering disciplines, with PEC registration required in categories CE-09, CE-10, EE-07, and EE-03. Contractors must demonstrate experience with similar water and sewerage infrastructure projects, including submission of past performance documents and financial audits. The projects are funded under the Sindh Government ADP Program for the financial year 2025-26, emphasizing compliance with local procurement rules and technical standards. Bidders should ensure valid registration with Sindh Revenue Board, Federal Board of Revenue, and maintain active tax payer status. The tender requires submission of a bid security of 5% of the bid amount and performance security of 10%. The contract duration is 90 days from the notice to commence, with a defect liability period of 30 days post completion. The procurement follows the Single Stage, Single Envelope method under SPP Rules 2010 (Amended). Submission deadline is set for 12th March 2026 at 11:00 AM via the EPADS portal, with bid opening at 11:30 AM the same day at the Karachi Water & Sewerage Corporation office. Bidders must submit sealed bids with all required documents, including an Integrity Pact for contracts exceeding Rs. 10 million. The tender emphasizes strict adherence to bid validity, technical compliance, and financial capability. Pro-Tip: Carefully review the detailed Bill of Quantities and ensure all rates are quoted precisely as per the Composite Schedule of Rates (CSR-2024). Pay special attention to the bid security and performance security requirements, as non-compliance will lead to disqualification. Also, verify the registration categories and ensure timely submission on the EPADS portal to avoid late bid rejection.