Patel Engineering Limted (PEL) used 3.2 metre diameter Tunnel Boring Machine to bore tunnel for Brihanmumbai Municipal Corporation (BMC).

Patel Engineering completed 3km of 5,5 water tunnel reports Construction Week.

https://www.constructionweekonline.in/projects-tenders/bmc-executes-fastest-tunnelling-in-mcgm-water-tunnel-project-mumbai