Chittaranjan Locomotive Works Chittaranjan invites electronic bids under notice reference COS/CRJ/PUB/e-Tender/19/0162 for manufacturing items including copper tubes of varying dimensions and thermal cum sound insulation sets for WAG-9HC locomotives. Full technical parameters, mechanical drawings, and bidding rules are hosted online on the electronic portal Indian Railways E-Procurement System. Bidding closure deadlines vary by product item, spanning from August 7 to September 15, 2026. For structural inquiries, prospective suppliers can connect directly with the office officials via phone at 9163340708.