India’s first underwater metro tunnel completed!
Kolkata is going to be the first city in India to have an underwater metro. The tunneling work under the Hooghly river is completed. It… Read More »India’s first underwater metro tunnel completed!
Kolkata is going to be the first city in India to have an underwater metro. The tunneling work under the Hooghly river is completed. It… Read More »India’s first underwater metro tunnel completed!