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Kolkata Metro - a quick, safe, cost-effective and eco-friendly mass transportation network by Ajay Vijayvargiya, General Manager, Metro Railway, Kolkata
 

Kolkata Metro - a quick, safe, cost-effective and eco-friendly mass transportation network by Ajay Vijayvargiya, General Manager, Metro Railway, Kolkata at the Inaugural Session at the Rail Connect East 2017 held on 6 November 2017 at Kolkata.