It will take 80 to 50 hours more

About seven meters of rubble had to be excavated using rat-hole mining techniques to extricate the 41 trapped workers.

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Adrita
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BY A STAFF REPORTER: The Uttarkashi tunnel rescue has just completed 43 meters of vertical drilling for a 1.2 meter diameter pipe from the hilltop. It may take another 40 to 50 hours to complete the rest of the work. Also 78 meters of vertical drilling for 8 mm diameter pipe from hill top has also been completed. However, due to minor problems in the pipeline, the excavation work has been temporarily stopped. However, according to sources, manual drilling is going on smoothly inside the tunnel.

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