Bishnoi also accused Badal of openly campaigning against HJC-BJP candidates for Lok Sabha polls in Haryana.
A week ago, the HJC head shot off a strongly-worded letter to senior BJP leader L K Advani over Shiromani Akali Dal's "open campaign" against the candidates of the BJP and its ally HJC during the just-concluded Lok Sabha polls in Haryana.
Accusing Badal of having two faces on corruption, Bishnoi asked Badal to come clean on his stand on the graft.
When asked whether Badal's attempt to forge a tie-up between the INLD and the BJP would put a question mark on the future of the HJC-BJP alliance, Bishnoi shot back "there is no question mark over the tie-up."
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"Who will put this question mark, it is either the HJC or the BJP. Who is Parkash Singh Badal, he is nobody. He is just the Chief Minister of Punjab and a part of the NDA.
"Badal says in Punjab their fight is against corruption and want to make Narendra Modi the Prime Minister. But in Haryana, he campaigns for the INLD, some of whose leaders are in jail for corruption and says defeat the BJP and the HJC. His credibility ends here," Bishnoi said.
This exposed the two faces of Badal on the corruption issue, he said.
Bishnoi said their alliance with the BJP was strong as ever.
"We are with the BJP. Our alliance is rock strong, 100 per cent. From time to time, senior BJP leaders including Modi, Rajnath Singh, Sushma Swaraj, Nitin Gadkari, M M Joshi and others have been reiterating this fact that the alliance is strong and here to stay. But there are some elements who want to spread rumours. We don't care about them," he said.