East-West Metro tunnel gap increased from 4 metres to 7 metres

East-West Metro authorities have revised the alignment of the tracks passing through Bowbazar and almost doubled the distance between the two tunnels for burrowing safely through the perilous cave-in zone. The gap between the first tunnel-boring machine (TBM), Chundee, and its twin Urvi is being widened from 4 metres to 7 metres.

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