János Lázár said the construction and transport ministry is coordinating the revamp of 10 busy railway stations.
As part of the scheme, Debrecen railway station will be rebuilt with the involvement of private capital, Lázár said in a video posted on Facebook.
Commercial functions are being hived off from railway purposes and handed over to private capital, he said, noting plans to create a shopping mall with a railway point of arrival.
Tenders are open to private capital for the projects in the cities of Debrecen, in eastern Hungary, Gyor, in the west, and Szeged, in the south of the country.