Four coaches and engine of the Miraj-Hubli express derailed near Tavaragatti station on Hubli-Londa section today.
No passenger was injured, South Western Railway authorities said.
The derailment occurred at 0433 hours and teams have been despatched to help stranded passengers, SWR Hubli Division Manager Aadesh Sharma said in a statement.
He said ten buses have been engaged to transport passengers and work to restore services on the section have already begun.
Following the derailment, the Rani Chennamma express from Dharawad and Kolhapur, Hubli-Bellary-Dharwad passenger and Londa-Hubli passenger trains have been cancelled.
In the wake of the incident, the Bangalore-Jodhpur express has been diverted via Gadag, Bijapur, Sholapur and Pune, Dadar-Yeshavantpur Chalukya express regulated at Belgaum railway station and Tirupati-Kholhaur Haripriya express at Hubli and Howrah-Amaravati express at Londa.
The cause of the derailment is being investigated, Sharma said.