India’s National High Speed Rail Corporation Limited (NHSRCL) announces an international tender for the construction of the county’s first undersea rail tunnel.

It will be 21km long twin-tunnel. It will be constructed using a combination of TBM and NATM between Mumbai Underground Station and Bandra-Kurla Complex Station.

Please read the news in the link below:

Here is the tender documents at NHSRCL site:

https://www.nhsrcl.in/view-tender-details?tender-id=MTQ2

Here is a well written news about it:

https://tunnellingjournal.com/tender-announced-indias-longest-sub-sea-tunnel/

Good luck to anyone who may be interested!

Best.