India's 1st under-river metro tunnel to be completed next week in WB
The under-river tunnel is a crucial link for the Railway's 16.6-km long East-West Metro project in Kolkata.
May 28, 2017, 20:38 PM IST
Under-river metro tunnel
The under-river tunnel is a crucial link for the Railway's 16.6-km long East-West Metro project in Kolkata.
May 28, 2017, 20:38 PM IST