Terratec TBM for Mithi River Water Quality Improvement Project of Mumbai Photograph used with courtesy of Terratec co. from :https://terratec.co/NewsInfos/detail/106  

India Terratec large Raise Borer photography released by Terratec

Metro Tunnel (ABB India)

First Tunneling Drive Of Phase 4 Started At Vikaspuri image rights Delhi Metro press release.

First Tunneling Drive Of Phase 4 Started At Vikaspuri image rights Delhi Metro press release.

Larsen & Toubro (L&T) company logo

Larsen & Toubro Construction company logo

Chennai Metro Phase 2 Map (map by Chennai Metro Rail Limited)