This tender invites bids for the supply and installation of HVAC systems and associated electrical works for the Anti Snake Venom & Anti Rabies Serology Laboratory located in Karachi under the Livestock and Fisheries Department, Government of Sindh. The project involves comprehensive HVAC works including self-contained package units with scroll compressors, exhaust fans, ducting, HEPA filters, and related civil and electrical installations. The site is situated at the Animal Science Complex, Korangi Industrial Area, Karachi, requiring precise engineering to meet laboratory standards and environmental controls. The scope covers supply, installation, testing, and commissioning of HVAC equipment, including air handling units, exhaust fans, ducting with PIR insulation, flexible connectors, and air terminal HEPA filters with MS housing. Electrical works include cable laying with PVC conduits, installation of starters, VFDs, lighting, power panels, and cable trays. The project also includes civil works such as foundations, epoxy flooring, gypsum ceilings, painting, and structural openings. The technical specifications demand adherence to international standards and quality assurance for laboratory-grade HVAC systems. Bidders must hold a valid PEC registration in category C-4 or above with relevant specialization codes and be active taxpayers with FBR registration. The tender requires submission of a bid security of PKR 2,250,000 and performance security of 5% of the contract value. Bidders should have a minimum of five years' experience supplying similar goods to public sector entities and meet detailed qualification criteria including financial stability and technical capability. The submission deadline is set for 03 February 2026 at 02:30 PM, with bid opening at 03:00 PM on the same day at the Committee Room of Sindh Institute of Animal Health, Karachi. Bids must be submitted online via the EPADS portal and hard copies delivered to the Procuring agency's office. The tender follows a single stage two envelope procedure, with technical bids evaluated first and financial bids opened only for technically qualified firms. Pro-Tip: Ensure all bid documents are complete, signed, and stamped on each page. Pay special attention to the bid security validity and PEC registration details, as non-compliance will lead to disqualification. Also, verify the technical specifications and provide detailed catalogues and compliance certificates to avoid rejection during technical evaluation.