This tender invites qualified contractors to undertake repair and maintenance of water supply and sewerage lines in Malir, Karachi. The Karachi Water and Sewerage Corporation requires experienced firms to ensure smooth and continuous operation of water and sewerage systems in Sherpao, Muslimabad, Muzaffarabad, Majeed Colony, and Cattle Colony areas. The scope includes civil construction works involving water supply lines, sewerage drains, and nallahs, demanding expertise in heavy civil engineering and infrastructure maintenance. The works require contractors with PEC registration in CE-09 or CE-10 categories and proven experience in similar projects. Contractors must demonstrate technical capacity with at least five similar completed projects in the last five years, supported by completion reports. Financial stability is essential, with an average annual turnover matching the estimated cost. The tender emphasizes submission of detailed machinery lists, technical staff qualifications, and compliance with tax and revenue board registrations. Bidders should ensure valid PEC registration, active FBR status, and inclusion on the Active Taxpayer List (ATL) for the fiscal year 2025-26. The tender documents specify the need for notarized affidavits confirming no blacklisting, bid security in the form of pay orders or CDRs, and signed integrity pacts. Firms must also comply with the Sindh Public Procurement Rules 2010, including submission of bids through the EPADS online portal. The submission deadline is set for 12th February 2026 at 11:00 AM, with bid opening at 11:30 AM on the same day at the Karachi Water and Sewerage Corporation office, 1st Floor Block C, 9th Mile Karsaz Shahrah-e-Faisal, Karachi. Bidders must submit original bid security physically before bid opening. Joint ventures with up to two partners are permitted. Pro-Tip: Carefully review the bid security requirements and ensure the pay order or CDR is embossed with the company name. Missing or improperly prepared bid security is a common cause for disqualification. Also, verify all documents are signed and stamped as per tender instructions to avoid rejection.