This tender invites bids for the construction of an underground water tank and pump room at the Commissioner Karachi Residential Buildings, located in Karachi, Sindh. The Executive Engineer, Project Directorate of Commissioner Karachi, is overseeing this project which falls under construction and electrical works categories. The scope includes excavation, brick ballast work, reinforced cement concrete, steel reinforcement, bitumen coating, masonry, plastering, electrical wiring, and installation of pumps and water stoppers. The project demands high-quality materials and workmanship to ensure durability and compliance with local standards. The work involves complex civil and electrical engineering tasks including excavation, concrete pouring, steel reinforcement fabrication, and installation of electrical fixtures and pumps. The site is in Karachi, requiring consideration of local climatic and soil conditions. Contractors must be prepared to manage logistics, material handling, and site safety effectively. The project duration is 120 days with a penalty for delay and a mobilization advance option. Bidders must be registered with the Pakistan Engineering Council (PEC) in the relevant category and provide evidence of financial capacity, technical expertise, and past similar work experience. Compliance with FBR/ATL registration and Sindh Revenue Board (SRB) active status is mandatory. The tender requires submission of bid security of PKR 250,000 and a performance security of 10% of the contract amount. The bid validity period is 90 days. The submission deadline is on the 24th of March, 2026 at 09:00 AM, with bid opening at 09:30 AM on the same day at 4-Club Road, Main Commissioner Office Karachi. Bids must be submitted in sealed envelopes with technical and financial proposals clearly marked. The procuring agency reserves the right to accept or reject any bid without assigning reasons. Pro-Tip: Ensure all bid documents are complete, signed, and stamped. Pay special attention to the Earnest Money Deposit (EMD) and bid security requirements, as non-compliance leads to disqualification. Also, verify PEC registration category and financial documents carefully to avoid rejection during technical evaluation.