The Bangalore–Arsikere–Hubli line is a major railway line in the Indian state of Karnataka connecting state capital Bangalore with city of Hubballi in north-central Karnataka.

Apart from this, this route also links Karnataka with other states, such as Goa, Maharashtra, Gujarat and Rajasthan.

This route is also a major feeder line for iron ore, coal and steel hauling freight trains originating from Ballari district towards the Ports of Goa (via Braganza Ghats) and Mangaluru (via Shiradi Ghats).

The fastest passenger service in this line is KSR Bengaluru–Dharawad vande bharat Express, which covers the two cities in 6h 40m, at an average speed of 76 km/h.

this line has five branches As of June 2023, the entire stretch is fully electrified and electrification of loop lines at some stations between Haveri and hubballi is in progress and is expected to be completed by end of June 2023.