Mumbai–Ahmedabad High-Speed Rail Corridor to begin TBM tunnelling for underground section, India July 4, 2026 | Asia Pacific News, News The National High Speed Rail Corporation Limited (NHSRCL) will commence excavation by tunnel boring machines (TBMs) for the underground section of the Mumbai–Ahmedabad High-Speed Rail Corridor, markin... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password