Kolkata to get India’s 1st under-river Metro today
.“The under-river tunnel is 13 metres beneath the riverbed and 37 metres (more than 120ft) below the ground surface. There…
Kolkata to get India’s 1st under-river Metro today | Kolkata News
KOLKATA: Over 100 years after an underwater railway line was proposed between Kolkata and Howrah by a British engineer born…