National Highway 16 (NH 16) also known as Kolkata - Chennai Highway is a major National Highway in India that runs along east coast of West Bengal, Odisha, Andhra Pradesh, and Tamil Nadu.[1] It was previously known as National Highway 5.
The northern terminal starts at Dankuni near Kolkata, West Bengal and the southern terminal ends at Nallur near Chennai, Tamil Nadu. It is a part of the Golden Quadrilateral project to connect India's major cities.[2][3]