The briefing
A 13.6‑metre diameter, 350‑tonne cutterhead was lowered in Mumbai’s Vikhroli, marking the final stage of primary assembly for a tunnel boring machine on the high-speed rail corridor, according to NHSRCL. The milestone advances tunneling works for the Mumbai–Ahmedabad bullet train project.
Original headline
Bullet Train Project: First Tunnel Boring Machine Cutterhead Lowered At Mumbai's Vikhroli