The Guwahati–Mariani BG Express is an Express train belonging to Northeast Frontier Railway zone that runs between Guwahati and Mariani in India.

The 15665/Guwahati–Mariani BG Express has an average speed of 46 km/h and covers 404 km in 8h 45m.

The 15666/Dimapur–Guwahati BG Express has an average speed of 46 km/h and covers 404 km in 8h 50m.

The train consists of 13 coaches: Both trains are hauled by a Guwahati Loco Shed- based WDM-3A diesel locomotive from Guwahati to Dimapur and vice versa.

This Indian express train article is a stub.