This tender from Pakistan Railways in Rawalpindi invites bids for refilling oxygen and DA gas cylinders along with repair of axle box cases. The procurement falls under Fuel & Gas Cylinders and Vehicles & Auto Parts categories, essential for maintaining operational efficiency at the Central Diesel Locomotive Workshops. The scope includes refilling oxygen gas cylinders rated at 6.8 CMT and 2190-2200 PSI, and DA gas cylinders at 4.5 CMT and 275-280 PSI. Additionally, repair work on axle box cases is required. These components are critical for locomotive functionality and safety, demanding precise technical handling and quality assurance at the Rawalpindi facility. Bidders should ensure compliance with Pakistan Railways' procurement rules, including valid NTN registration on the FBR Tax Payer List. While PEC category is not explicitly mentioned, firms must maintain good standing with FBR and ATL for the fiscal year 2025-26. Submission of Call Deposit Receipt (CDR) as bid security from a scheduled bank is mandatory. The submission deadline is set for 28th January 2026 by 12:30 PM, with bid opening at 1:00 PM the same day at the office of the Account Officer/CDL, Pakistan Railways, Rawalpindi. Bids must be uploaded via the E-Pak Acquisition & Disposal System (E-PADS) and accompanied by original bid security and hard copies submitted physically. Pro-Tip: Carefully review the tender documents for specific bid security requirements and ensure timely upload on the E-PADS portal to avoid disqualification. Also, verify the exact specifications for gas cylinder refilling pressures and axle box repair standards to meet Pakistan Railways' quality benchmarks.