Union Minister for Road Transport and Highways, Nitin Gadkari, issued a stern warning on Monday, stating that authorities would be suspended if the recarpeting of the Nagpur airport runway is not completed within a month.The last recarpeting of the runway was carried out in 2013-14 by the Airports Authority of India (AAI). Gadkari conducted an on-site inspection of the runway earlier on Monday morning.Mihan India Limited (MIL), in collaboration with AAI, operates the Nagpur airport.