Kejriwal, who succeeded to storm the nation with his allegations against Union Law Minister Salman Khurshid and Congress President Sonia Gandhi's son-in-law Robert Vadra, is believed to have evidence against the BJP president.
However, sources also claimed that Kejriwal's next target could be National Congress Party (NCP)-led by Union Agriculture Minister Sharad Pawar.
Anjali Damania, Mumbai-based activist, meanwhile, claimed that Pawar and Gadkari had hands in glove over irrigation scam which had forced deputy Chief Minister of Maharashtra, Ajit Pawar, to resign from his post.
"When I approached Mr Gadkari to raise the irrigation scam issue, he told me that he could not help me because he and Pawar grant favours to each other," said Damania who reportedly had joined Kejriwal in his mission to expose the corrupts.
Kejriwal earlier had hurled allegations against Vadra over irregularities in his deals with leading real estate company DLF.
The former Team Anna member had also accused Khurshid and his wife Louise of making personal gains from funds meant for the welfare of physically challenged people for whom their NGO - Zakir Hussain Memorial Trust in Uttar Pradesh works.
Kejriwal's allegations and accusations created ruckus in the country and now once again all eyes will be on him as he earlier had stated, "We will expose another politician on Wednesday at 5 pm."