Final location survey for doubling of Siliguri-Thakurganj and Jalpaiguri-Siliguri rail lines, India June 8, 2023 | Asia Pacific Tenders, Tenders & Contracts Country: India Organisation: Northeast Frontier Railway (NFR) Description: Bids are invited for the final location survey (FLS) involving aerial topographical survey, land survey, detailed engineering... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password