This tender invites online bids for installation and rehabilitation of solar based tube wells and water supply systems in Karak city. The procurement covers solar tube wells, distribution systems, and solarization of existing water supply schemes under construction and civil works categories. The scope includes multiple lots for solar tube well installations and water supply system improvements across various locations in Karak district with estimated costs up to 10 million PKR per lot. The works involve rehabilitation of existing water supply schemes, installation of solar tube wells, solarization, and compound wall construction at multiple sites. Bidders must be registered with PEC, KPRA, and FBR and comply with Khyber Pakhtunkhwa Public Procurement Rules 2014. The tender requires submission through the E-PADS online portal with bid security and mandatory documentation. Bids must be submitted by 15th January 2026 at 11:00 hours and will be opened the same day at 13:30 hours. The Executive Engineer Public Health Engineering Division Karak-II is the contact authority. Eligibility includes valid PEC registration, KPRA and FBR certificates, and affidavit of non-blacklisting.