5. Golden Quadrilateral Highway Network
Length of highway: 3,632 miles (5,846 kilometers)
The highway is called the quadrilateral network because it connects four main cities in Chennai, Delhi, Kolkata and Mumbai, and took 11 years to be built.
Length of highway: 3,632 miles (5,846 kilometers)
The highway is called the quadrilateral network because it connects four main cities in Chennai, Delhi, Kolkata and Mumbai, and took 11 years to be built.
