Bangladesh Railway is undergoing one of the most significant fleet modernisation programmes in its history. As of early 2026, the railway authority is in the process of commissioning new diesel locomotive units and passenger coaches under a multi-year procurement plan funded through government allocation and development partner loans.
New locomotive fleet: Bangladesh Railway has ordered a batch of new diesel-electric locomotive units from established manufacturers to replace aging 1970s-era machines. The new units feature improved fuel efficiency (estimated 15–20% reduction in diesel consumption per kilometre), higher traction power enabling faster speeds on modernised track sections, improved reliability with reduced mechanical breakdown rates, and cab air conditioning for locomotive crew — a significant improvement from the previous fleet. The new locomotives are designed to handle Bangladesh Railway's existing broad-gauge and metre-gauge infrastructure without track modifications.
New passenger coaches: Alongside locomotives, Bangladesh Railway is receiving new passenger coaches from multiple procurement contracts. The new Snigdha (AC chair) coaches feature larger windows, improved seat ergonomics with wider reclining push-back mechanisms, USB and standard charging ports at every seat, improved LED lighting, and modernised washrooms. New Shovan Chair coaches feature reprofiled seats with padded headrests — a practical upgrade that significantly improves comfort on journeys over 4 hours.
Routes receiving new equipment first: The Dhaka–Chittagong and Dhaka–Sylhet corridors are prioritised for new rolling stock deployment due to high passenger density and commercial importance. The Cox's Bazar Express is expected to receive new coaches as the route matures and passenger numbers grow.
What this means for passengers: Travellers on the Dhaka–Chittagong Subarna Express and the Dhaka–Sylhet Parabat Express should expect improved coach quality on select services starting from mid-2026. Snigdha class passengers in particular should see a noticeable upgrade in seat comfort and in-coach facilities as new coaches enter service.