National Highway 340 (NH 340) is a National Highway in the Indian state of Andhra Pradesh & Karnataka.

It was formed as a new highway by up-grading former state highway of the state.

It starts at Kadapa and Bangalore .

[1] It starts at Kadapa and passes through Rayachoti, Chinnamandem, Gurramkonda, Madanapalli, Chinthamani, and Bangalore in Karnataka.

It has a route length of 253 km (157 mi)[1]