Northern Railway invites e-tenders for supplying various railway components including gravity cocks, air brake hose couplings, and axle end cap screws. Bidders can visit ireps.gov.in to download full technical specifications, quantities, and individual item closing dates ranging from August 10 to September 14, 2026. Manual offers are completely barred. For procurement system support, vendors must coordinate directly through the official IREPS digital portal.