India is making significant progress in transportation technology with the development of its first Hyperloop system. A team at the Indian Institute of Technology, Madras has unveiled India's first hyperloop test track, spanning 422 meters. Hyperloop India: Bengaluru to Chennai in half hr? IIT-M unveils Hyperloop test track
I'm skeptical that ground transport could ever safely reach Mach 1.0, or anything close to it. Travel through low pressure tubes might still be worthwhile though.