A 160-meter tunnel has been mistakenly excavated during the ongoing construction of Athens Metro Line 4, sparking a fiasco.
When this came to the attention of the supervising authority, an order was immediately issued to revert to the previous study ...
The Delhi Metro Rail Corporation (DMRC) Tuesday completed tunnelling on the deepest underground stretch of Phase 4 with a tunnel breakthrough at the IGNOU station on the Aerocity-Tughlakabad corridor, ...
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