The Rs 63,246 crore expansion, which comprises three corridors...
https://swarajyamag.com/news-brief/chennai-metro-update-tunnelling-work-to-commence-between-kolathur-and-villivakkam-in-phase-ii-expansion
https://swarajyamag.com/news-brief/chennai-metro-update-tunnelling-work-to-commence-between-kolathur-and-villivakkam-in-phase-ii-expansion
Chennai Metro Update: Tunnelling Work To Commence Between Kolathur And Villivakkam In Phase II Expansion
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