Hussain, BJP Lok Sabha member from Bhagalpur, stressed on a probe to find "people behind him (Kejriwal)".
India Against Corruption (IAC) activist Arvind Kejriwal had on Wednesday targeted Gadkari, accusing him of receiving personal favours by getting around 100 acres of agriculture land in Maharashtra after the Congress-NCP government there allegedly bent rules.
He demanded to the Centre and the state government to accord special status to Kisanganj due to its strategic location on country's border with Bangladesh and Nepal.
Shahnawaz had in the past represented Kisanganj in Parliament.
On the recent violence at Madhubani, the BJP leader said "it seems to be part of a conspiracy hatched by rumour mongers out to vitiate the environment in the country."