This tender invites contractors to undertake the betterment of the sewerage system in Chanesar Town, Karachi, specifically in PECHS-I UC-01 and PECHS-II UC-02 areas. The Karachi Water and Sewerage Corporation requires replacement of old and damaged sewerage lines of various diameters ranging from 09" to 24" and cleaning of these lines using winching machines. The project involves dismantling, excavation, laying RCC pipes with rubber ring joints, construction of manholes, and installation of RCC manhole covers and ring slabs. The work site is located in a busy urban area, requiring careful traffic management and safety measures during excavation and cleaning operations. The scope demands experienced contractors with valid PEC registration in CE-09/10 specialization and active FBR/ATL status. Contractors must demonstrate technical capability by providing evidence of at least five similar civil construction projects completed in the last five years, with at least one project valued at 80% of the estimated cost or two projects at 50% each. Financial stability is essential, requiring submission of income tax returns for the last three years and audited financial statements for the last five years. The contractor must also provide details of machinery ownership or rental and qualified technical staff including a PEC-registered engineer. Bidders should note the requirement for bid security amounting to 2% of the estimated cost, submitted as a pay order from the company's account. The tender fee is PKR 5,000, and the bid validity period is 90 days. The procurement follows the Single Stage One Envelope procedure under Sindh Public Procurement Rules 2010 (amended). The bid submission deadline is 28th January 2026 at 2:00 PM, with bid opening at 2:30 PM on the same day at the KW&SC office located at Room No.12-A, 1st Floor, Block C, 9th Mile Karsaz, Shahrah-e-Faisal, Karachi. Pro-Tip: Ensure your bid documents include a notarized affidavit confirming the firm is not blacklisted and that the bid security pay order is embossed with the company name. Missing these details often leads to disqualification. Also, carefully check the bid submission timing on the EPADS portal to avoid late submissions which are strictly rejected.