Maintenance of electronic interlocking system in Ambala, India January 20, 2023 | Asia Pacific Tenders, Tenders & Contracts Country: India Organisation: Northern Railway Description: Bids are invited for an annual maintenance contract for the electronic interlocking system. Closing date: January 31, 2023 Contact: J68J+X22,... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password