In what can be termed as an important development, the Mumbai Metro Rail Corporation(MMRC) on Tuesday announced that Colaba-Bandra-SEEPZ corridor has completed 5100 meters of tunnelling.

In a press release issued to the media, MMRC which is implementing the first underground metro corridor is using Tunnel Boring Machines (TBMs) at various Launching Shafts for tunnel construction of Mumbai Metro Line III. According to the press release, so far, all 17 TBMs have completed the Factory Acceptance Test (FAT) and 15 of them have already arrived in the city. While 8 TBMs have been lowered and have started their main drives, the lowering process of 3 TBMs are in progress. Towards the end of July 2018, 2 more TBMs will be lowered and the remaining TBMs will be lowered by end of September 2018.