This tender invites qualified contractors in Islamabad under the Capital Development Authority (CDA) for the design and construction of a Waste Water Treatment Plant along the Korang River. The project falls under Construction & Civil Works Materials, focusing on sustainable urban infrastructure development. The scope includes engineering, procurement, and construction (EPC) of a state-of-the-art treatment plant designed to improve wastewater management in the Korang River catchment area. The site in Islamabad presents typical urban engineering challenges including environmental compliance, riverbank stabilization, and integration with existing municipal systems. Contractors must demonstrate expertise in civil works, water treatment technologies, and project management to ensure timely and quality delivery. Bidders should ensure their PEC registration aligns with the relevant category for water and wastewater treatment projects. Compliance with FBR and Active Taxpayer List (ATL) status for the fiscal year 2025-26 is mandatory. It is advisable to prepare all documentation including Earnest Money in the form of Call Deposit Receipt (CDR) as per tender requirements to avoid disqualification. The submission deadline is set for 23rd April 2026 at 11:30 AM, with technical and financial proposals to be uploaded electronically via the official e-procurement portal. The opening of bids will occur the same day, at least 30 minutes after the closing time. The physical address for correspondence is the CDA Secretariat, Sector G-7/4, Islamabad. Pro-Tip: Carefully review the corrigendum and original RFP documents for bid security specifications and ensure all electronic submissions meet the portal requirements to avoid technical disqualification.