Northern Railway invites e-tenders under Tender No. 30-Elect-9TR-Chg-2025-26 for cleaning fresh air filters, AC grills, and cooling coils across primary-based trains over Delhi Division for three years. The approximate cost of work is ₹16,91,99,916 with a required Earnest Money Deposit (EMD) of ₹9,96,000. Submit online bids through www.ireps.gov.in by 01-09-2026.