Then and now: How tech made the difference

  • By TOI
  • | Monday | 17th April, 2017

Tripura governor Tathagata Roy, and deputy chief engineer of the Kolkata Metro then, said: "It was not an easy job in a controlled economy to terminate contracts and get new global consultants as it's now. The challenge was to join the Shyambazar five-point crossing with Bhupen Bose Avenue in north Kolkata. The rest of the Metro alignment from Tollygunge was more or less a cut-and-cover job. But tunnelling at north Kolkata part was the most challenging. KOLKATA: His eyes glistened at the technological marvel when the computer operated tunnel boring machine (TBM) nosed under the Hooghly to carve out two tunnels last Friday.

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