This tender invites bids for the procurement of calibration, descaling, fitment and testing services for test bench gauges, sensors, meters and related equipment at Heavy Industries Taxila (HIT), Taxila Cantt, Punjab. The Supply Chain Management Directorate of HIT is overseeing this procurement under the Ministry of Defence Production. The category primarily covers electronics and appliances essential for maintaining and ensuring the accuracy of test bench instruments used in defense manufacturing and maintenance. The scope includes supply and testing of various precision instruments such as gauges and sensors, with delivery to the DESCOM Factory at HIT Taxila. The contract duration is 45 days post signing, with detailed technical specifications and quality assurance requirements outlined in the tender documents. Bidders must comply with strict eligibility criteria including NTN registration, audit reports for the last three financial years, and must submit a bid security in the form of a Call Deposit Receipt or Bank Draft. The tender follows a single stage two envelope procedure, requiring separate technical and financial proposals. Bidders should ensure compliance with PEC categories and maintain active tax status with FBR and ATL for the fiscal year 2025-26. The tender mandates submission of a valid performance bank guarantee and warranty bank guarantee as per contract terms. Firms must also adhere to the Official Secret Act 1923 and sign a Non-Disclosure Agreement. The bid validity period is 180 days, extendable by 90 days. Late submissions will not be entertained. The submission deadline is set for 25 March 2026 at 10:30 hours, with bid opening at 11:00 hours the same day at the Supply Chain Management Directorate, HIT Taxila, Gate No. 5. Bids must be submitted in sealed envelopes clearly marked as Technical and Financial Proposals. Postal order of Rs 2000/- must accompany the technical bid. The physical address for submission is Lieutenant Colonel Muhammad Shuja Chaudhry, Assistant Director Procurement, SCM Directorate, HIT Taxila. Pro-Tip: Ensure all mandatory documents including the bid security, registration certificates, and OEM agreements are complete and attached. Pay special attention to the bid security amount and the postal order inclusion, as missing these often leads to disqualification. Also, verify the stamp duty payment as per the Stamp Duty Act 1899 to avoid procedural delays.