National Highway 75 (NH 75) is one of major National Highway in India. passing through states of Karnataka, Andhra Pradesh, and Tamil Nadu. This national highway was earlier known as National Highway 48 (NH-48) before rationalisation of highway numbers in 2010. The highway connects the port city of Mangaluru (Mangalore) in the west to the city of Vellore in the east. NH-75 traveses all three geographical regions of Karnataka state namely Karavali, Malenadu and Bayaluseeme.