Following its success at Veligonda, where a 7.9 m-diameter Herrenknecht double shield TBM achieved 525 m advance in one month, the German manufacturer has announced orders for 18 EPBs in the +6 m-diameter range for Indian metro projects. These will drive 71 km of tunnels, mainly in the cities of Delhi, Bangalore, Chennai and Kolkata. Read the press release and view tunnelbuilder archive reports on Herrenknecht. 34/12.