As per reports, the East-West metro corridor has the distinction of the very first under river transportation tunnel in India below the River Hooghly, being 520m long and 13 m below the river bed and one of the deepest metro stations at Howrah, which is 30 m deep below the ground
As per reports, the East-West metro corridor has the distinction of the very first under river transportation tunnel in India below the River Hooghly, being 520m long and 13 m below the river bed and one of the deepest metro stations at Howrah, which is 30 m deep below the ground