Party General Secretary Digvijay Singh told reporters at party headquarters that Gadkari, heading the Road Transport and Highways Ministry, has allegedly violated the CVC guidelines while awarding the contract.
However, Gadkari rubbished the charges of corruption and said Singh's allegations were "completely false" as the Ministry followed a transparent e-tender system. He also denied that his son was a director in IRB Infrastructure Developers.
Swiss challenge is a form of public procurement which requires a public authority which has received an unsolicited bid for a public project (such as a port, road or railway) or services to be provided to government, to publish the bid and invite third parties to match or exceed it.
Fielding questions, the minister said adequate measures
will be taken to ensure security of the facilities created along India's coastline from any terrorist threat.