National Highway 66 (India)

National Highway 66, commonly referred to as NH 66 (erstwhile NH-17 and a part of NH-47), is a mostly 4 lane 1640 km (1020 miles) long busy National Highway that runs roughly north–south along the western coast of India, parallel to the Western Ghats. It connects Panvel, a city east of Mumbai to Kanyakumari via Mangaluru, passing through the states of Maharashtra, Goa, Karnataka, Kerala and Tamil Nadu.

Source: Wikipedia — National Highway 66 (India) (CC BY-SA 4.0)