Kamrup Express is a daily Express train which connects Kolkata, the capital of the state of West Bengal with Dibrugarh, a major tea manufacturing town in upper Assam.

Following the inauguration of the Bogibeel Bridge, which significantly reduced travel time between Lower Assam and Upper Assam by at least eight hours, Indian Railways opted to reroute certain trains operating between Dibrugarh via this new route.

The train has both AC and non AC accommodation, and one pantry car 15959/15960 is hauled by a Diesel Loco Shed, Siliguri-based WDP-4D locomotive from Dibrugarh to Guwahati and an Electric Loco Shed, Howrah-based WAP-7 locomotive completes the journey from Guwahati to Howrah and vice versa.

15961/15962 is hauled by a Diesel Loco Shed, Siliguri-based WDP-4D locomotive from Dibrugarh to Rangiya Jn.

and an Electric Loco Shed, Howrah-based WAP-7 locomotive completes the journey from Rangiya Jn.