India’s first-ever underwater river tunnel train is expected to be fully functional within a few months. The project was completed at a cost of approximately Rs. 8,600 crore.
The Hooghly river's underwater tunnel, India's first, is expected to be completely functional within a few months. The Kolkata Metro Rail Corporation (KMRC) has expanded its East-West corridor to include the twin tunnels, which would traverse the Hooghly river for around 500 meters.
The underwater metro train, In...
