The line will roughly follow the route of the existing highway between the two towns and will have 29 culverts and bridges, including a 5.2km viaduct spanning the flood plain of the River Rupsha. The line will be built for 120km/h operation and 25-tonne axleloads.

The project is being financed by the Bangladeshi government and the Import-Export Bank of India. Construction is expected to take two years to complete.

The closing date for prequalification is April 16.