Northeast Frontier Railway invites online bids for tender CMT-GENL-26-135-Part-I for the three-year ISO 3834 certification at C&W Workshop, New Bongaigaon. The advertised value is ₹3,00,005.98 with an Earnest Money deposit of ₹6,000. Bids must be submitted via the official portal by 15:00 hrs on July 9, 2026. Complete tender documents are available at www.ireps.gov.in.