Chennai Metro | After long wait, metro rail fails to ‘break through’

Chennai: It was to be yet another milestone for Chennai metro rail, the completion of one of the tunnels under Anna Salaibegun about six years. But after a long wait and a few tense moments on Tuesday, the boring machine literally hit a wall and was unable to break through the 3.7km long tunnel c... Click here to see more https://goo.gl/mURq23

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