"Gadkari is fully qualified for the presidentship of BJP. This is the qualification required to become BJP President... BJP president must be like this only. This is the essential qualification in BJP," he told reporters here.
Media reports have raised questions over the source of funds for Purti Power and Sugar Ltd controlled by Gadkari.
Media investigations claim that major investments and large loans to Purti were made by a construction firm Ideal Road Builders (IRB) group, which had won contracts between 1995 and 1999, when Gadkari was PWD minister in Maharashtra.
Gadkari has denied the allegations and offered himself and his companies to any probe.