This tender invites bids from eligible contractors in Kalat for executing multiple Water Supply Schemes (WSS) integrated with solarization and tube well development. The projects include drilling and development of tube wells alongside civil works at various locations such as Hakim Post, Chapper, Govt Girls College, Killi Rahim Abad Chotank, Killi Sanjdi, Shesha Deghar, Ghamguzar, and Kohing. These works are critical for enhancing water accessibility and sustainable energy use through solarization in Balochistan's challenging terrain. The scope covers comprehensive civil construction and advanced drilling techniques for tube wells, requiring contractors to manage site-specific engineering challenges like rocky substrata and water table variability. Solarization components demand expertise in power and electrical installations to ensure reliable, off-grid water supply systems. The projects are based on composite schedule rates for 2023, reflecting current market conditions. Bidders must hold a valid PEC registration with appropriate categories and be on the Active Taxpayer List (ATL) for 2025-26. Firms should demonstrate financial capacity with a turnover matching the estimated costs and provide evidence of similar completed assignments. Bid security of 2% of the estimated cost is mandatory, submitted as a Call Deposit Receipt (CDR) from a scheduled bank. Tender documents are available upon payment of the specified fees via green challan. The submission deadline is set for 09 February 2026 at 10:00 AM, with tender opening at 11:00 AM on the same day at the PHED office in Kohing, Kalat. Interested bidders should ensure timely delivery of sealed bids to the designated address to avoid disqualification. Pro-Tip: Carefully verify the bid security format and ensure the Call Deposit Receipt is correctly issued in the department's name, as this is a common cause for bid rejection. Also, confirm the firm's ATL status before submission to meet eligibility criteria.