This tender invites qualified contractors in Islamabad to undertake the construction of underground shelters, HVAC systems, transmission lines, hangers, and optical fiber cable installations. Issued by the Capital Development Authority (CDA), this project covers critical infrastructure works requiring expertise in civil construction and electrical installations within the capital territory. The scope includes excavation and construction of underground shelters designed to meet safety standards, installation of HVAC systems ensuring efficient climate control, and laying transmission lines and hangers for power distribution. Additionally, the project involves deploying optical fiber cables to enhance communication networks. The site location in Islamabad demands careful planning to address urban engineering challenges such as traffic management and utility coordination. Contractors should ensure compliance with the Pakistan Engineering Council (PEC) enlistment requirements relevant to civil and electrical works. It is advisable to verify the contractor's FBR Active Taxpayer List (ATL) status for the fiscal year 2025-26 to meet government procurement regulations. Proper documentation including Earnest Money and Call Deposit Receipt (CDR) must be prepared as per tender instructions. The submission deadline is set for the evening of **2024-07-08** at 23:59:59, with bid opening scheduled shortly after. Bids must be submitted in sealed envelopes to the Capital Development Authority's office in Islamabad. Interested parties should ensure timely delivery to avoid disqualification. Pro-Tip: Make sure to check the newspaper advertisement for specific stamp duty and bid security requirements, which are often overlooked but critical for bid acceptance. Also, carefully review Annexes A to G for detailed experience, financial, and equipment capability criteria to strengthen your technical bid.