National Highway 42 (NH 42), (previously part of old National Highways 205 and 219 The Chennai - Mumbai Highway), is a major National Highway in India, that runs in the states of Andhra Pradesh and Tamil Nadu. The northern terminal is at the National Highway 44 junction south of Anantapur inside Andhra Pradesh state and the southern terminal is at the National Highway 44 junction near Krishnagiri in Tamil Nadu.