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Dear Prof Scott

http://en.wikipedia.org/wiki/Undersea_tunnel

http://www.therichest.com/expensive-lifestyle/location/the-10-longest-underwater

www.youtube.com/watch?v=GWEGWfFe458

http://science.howstuffworks.com/engineering/structural/build-underwater-tunnel.

http://www.rediff.com/money/slide-show/slide-show-1-special-engineering-marvels-

http://www.theverge.com/us-world/2013/10/30/5045174/istanbul-railway-tunnel-is-w

http://wonderopolis.org/wonder/how-do-you-build-a-tunnel-underwater/

http://www.constructionchat.co.uk/articles/build-tunnel-underwater/

Do you consider Underwater Tunnels Construction feasibility studies can help bridge the Indian railways connectivity within and other countries for efficient transportation ?.

Thanks & Regards,

Prashant S Akerkar

In http://en.wikipedia.org/wiki/Undersea_tunnel a description was found on the requirements of building a tunnel.

In http://www.therichest.com/expensive-lifestyle/location/the-10-longest-underwater

it described the 10 longest tunnels in the world. Japan is said to already have a tunnel connecting two islands that is over 50 km long. These were also in www.youtube.com/watch?v=GWEGWfFe458.

In http://science.howstuffworks.com/engineering/structural/build-underwater-tunnel. it gives information on the technology needed to construct tunnels underwater. It tells of tunnels being constructed underground since the Babylonians, so it is not that modern of a thing; it is just far easier to do right now that back then.

In http://wonderopolis.org/wonder/how-do-you-build-a-tunnel-underwater/ it describes how France and England using a boring machine to construct a tunnel between them already. It is also talked about in http://www.constructionchat.co.uk/articles/build-tunnel-underwater/

The address

http://www.rediff.com/money/slide-show/slide-show-1-special-engineering-marvels-

ttp://www.theverge.com/us-world/2013/10/30/5045174/istanbul-railway-tunnel-is-worlds-deepest-connects-asia-europe were not found.

As far as connecting the Indian railways together with other countries, that sounds like a lot more expensive project. With the way technology is going, I'm sure it will be possible to do, though the cost to do so might still be out of reach. It seems like it might be better to bore tunnels through the mountains around India to neighboring places.

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Comment | Dear Prof Scott Thanks. Thanks & Regards, Prashant S Akerkar |

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