This document is an invitation for e-tenders from Northern Railway for supplying items like lower spring beams, TPU rings, and lead-acid batteries.Interested vendors must visit the official IREPS website (www.ireps.gov.in) to view complete tender details and submit their bids.Manual tender offers will not be accepted, and all submissions must be made through the designated e-procurement system before the closing dates listed in August and September 2026.