This tender invites contractors in Harnai, Balochistan, through the Public Health Engineering Division Harnai, for solarized water supply schemes and construction of R.O plants. The projects include installation of solar systems, civil works, HDPE piping, and supply and installation of R.O plants across multiple sites including Mohallah Akhtarabad, Shin Kach, Tuka Balam Malak Adam Khan, Talib Lease, and Shahragh. The scope covers bore drilling, sump wells, tube wells, and water quality testing, reflecting a comprehensive water infrastructure upgrade. The works require expertise in solarized water supply systems, civil construction, and pipe laying with HDPE pipes of various diameters and lengths. The sites in Harnai district pose engineering challenges such as terrain adaptation and ensuring sustainable water supply through solar power integration. Contractors must be prepared for detailed civil works and precise installation of solar and water treatment equipment, ensuring compliance with technical and environmental standards. Bidders must hold a valid PEC registration with category CE09 (Water Supply) and be registered with FBR and Balochistan Revenue Authority. The tender demands a Call Deposit Receipt (CDR) of 2% of the estimated cost as earnest money and a non-refundable tender fee of PKR 1500. Firms should have a GST authorized representative and provide an authorization letter on non-judicial stamp paper. The bid validity period is 90 days, and firms must submit affidavits confirming no blacklisting and past project experience. Submission deadline is **16-02-2026 at 11:00 AM**, with bid opening at **12:00 PM** the same day. Documents must be submitted physically to the Deputy Commissioner District Harnai office. Tender forms are available from **02-02-2026 at 12:00 PM** upon presenting requisite documents. All financial and technical bids must be signed, stamped, and marked sequentially. Pro-Tip: Carefully review the tender advertisement for specific stamp duty and authorization letter requirements, which are often overlooked and can lead to disqualification. Ensure all bid documents are complete and properly attested to avoid rejection.