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Chennai Metro Rail phase 2 work: Tunnel boring machine Podhigai achieves breakthrough
by completing a tunnel in a 1.4km stretch under the Madhavaram High Road for phase two of Chennai Metro Rail.
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://timesofindia.indiatimes.com/city/chennai/chennai-metro-rail-phase-2-work-tunnel-boring-machine-podhigai-achieves-breakthrough/articleshow/104920739.cms
Chennai Metro Rail phase 2 work: Tunnel boring machine Podhigai achieves breakthrough | Chennai News - Times of India
timesofindia.indiatimes.comCHENNAI: A tunnel boring machine named Podhigai achieved a breakthrough on Thursday by completing a tunnel in a 1.